They will have successes, but they will not be a contender for regular wins, or even podiums, unless one of the RB, Ferrari or Merc have a bad patch. Therefore Dan will not be having a crack at a WDC any time soon.
However, Merc are rumoured to be reconsidering their works F1 effort. If they close the team, and retain the engine supply, someone is going to have to put their hand up to run as the works team. The favourite would have to be the orange cars. Demote Key to aero chief, bring in Allison and a few key people, and bingo you have a phantom Merc team. In that scenario Hammy and Bottas would be paid out and their contracts cancelled. Hamilton would probably retire, having won his 7th title in 2020, Bottas would be scrambling. I'd back Ric in that contest should Bottas go to McLaren. Ric and Hamilton would be a dream team, and maybe a great contest too.
Maybe Dan is sniffing the wind, and it is about the long term future more than simply getting out of the shambles that is Renault F1?
