The Radio1 DJ said that he would "never" take over after bosses decided against renewing Clarkson's contract following a "fracas" over hot food left a producer in A&E in March.
But now Evans, who was among the instant favourites to fill Clarkson's shoes, said he will soon be filming a "Top Gear sequence" with an independent production company.
Channel 4's Sunday Brunch presenter Tim Lovejoy quizzed Evans on whether he had started to present Top Gear yet, to which Evans replied: "Not started yet, but we are doing a secret Top Gear film on Tuesday."
Lovejoy joked that the exciting plan was "not so secret" anymore but Evans, who is making a one-off return with TFI Friday this week, went on: "It still will be, because nobody knows where it's going to be but we're going to make one and see how it goes.
"We're making a Top Gear - we're doing a Top Gear sequence with an independent production company and we're going to see how it goes."
Things you never knew about Top Gear
Things you never knew about Top Gear
1/14 Top Gear isn't really for adults
It's 'aimed at people with a mental age of nine', according to executive producer Andy Wilman.
2/14 Planet Earth loves it...
Top Gear is screened in more than 100 countries worldwide and has millions of fans.
3/14 ...but not all motoring hacks do
You might think Jezza was a hero of the motoring hack world but that's not strictly accurate. Telegraph journalist Neil Lyndon summed Top Gear's 21st birthday last year up well: 'Does that mean Billy Bunter and his gang finally get forced out of the Fourth Remove and into long trousers?'
4/14 The Top Gear theme tune is a classic rock song
Seven-minute instrumental 'Jessica' by The Allman Brothers was a hit in 1973. Top Gear has recorded its own version now but used part of the original recording at first. One for the road trip playlist.
5/14 Jeremy Clarkson couldn't get much more controversial if he tried
The presenter is currently suspended from the BBC following a 'fracas' with a producer over a steak dinner. Past scandals include a string of racism allegations.
6/14 This Porsche caused all sorts of trouble in Argentina
The Top Gear team were forced to flee Argentina after locals took offence at the car's number plate - believing it was a deliberately provocative reference to the Falklands War of 1982.
7/14 If it's car-buying advice you want, look elsewhere
It's an in-joke in Top Gear that they don't do car tests. You would be mad to make a purchases based on Jezza's verdict.
8/14 Richard Hammond had a near-death experience filming Top Gear
The 'Hamster' was filming a Top Gear segment in a dragster called Vampire when its front-right tyre burst at 288mph. Hammond spent two weeks in a coma but luckily went on to make a full recovery. He requested that no mention of the crash was made in future Top Gear episodes.
9/14 Jeremy Clarkson is more than a little bit taller than Richard Hammond
Nine inches, to be precise.
10/14 Top Gear used to offer real advice
Before these lads took over, it was a real car-reviewing show with presenters such as Angela Rippon, who gave practical reviews of down-to-earth workhorses such as Cavaliers or Mini Metros.
11/14 Those 'reasonably priced' cars take quite a battering
Denis Chick, of Vauxhall, is brave to have lent the show a fleet of his Astras. He said: "Vauxhall Astra sales would not improve if everyone drove like Jimmy Carr around the Dunsfold track." The comedian hilariously took his test car's front off-side tyre clean off its rim.
12/14 Jeremy Clarkson is a YouTube star
Stray down the motoring internet hole and you'll find lovingly posted videos of 'Clarkson the early years' with incredibly loud hair reviewing 1990s cars in an oddly sensible manner. Very disturbing viewing.
13/14 There have been multiple Stigs
Racing driver Perry McCarthy was stuntsman The Stig on the first two series of Top Gear - here's the man under that famous helmet.
14/14 Ben Collins was The Stig for eight years
Ben Collins was The Stig on Top Gear for eight years. He left amid a clash with the BBC when he unmasked his identity and published an autobiography. Collins thinks Top Gear has 'lost some of its sparkle'.
BBC director general Tony Hall made the difficult decision to end Clarkson's Top Gear tenure after ruling that there "cannot be one rule for one and one rule for another".
It is still unclear what will happen to the highly lucrative show after it was reported that co-presenters Richard Hammond and James May have been offered deals in the region of £1 million a year to stay on for a new series without Clarkson.
That deal, which would make the pair among the corporation's highest earners, is said to involve introducing different guest hosts each week similar to the format of Have I Got News For You?, rather than directly replacing Clarkson.
The trio's contracts ran out earlier this year and it remains in doubt whether Hammond and May will go back on previous statements suggesting they would not host Top Gear with an "awks surrogate Jeremy".
Andy Wilman, Top Gear's former executive producer and an old school friend of Clarkson also left the show, sparking rumours he was joining up with all three men to make an alternative programme. Netflix and ITV are among the broadcasters rumoured to be in the running to screen it.
When contacted about Evans' comments the BBC said they will not be commenting on "speculation".
(Additional reporting: Press Association)Reuse content