On the all-rounder front I just don't know. But Stokes' time is very limited at best. I can't see him lasting beyond this summer, if he even makes that. His match-winning performances are also becoming less and less, like Botham and Flintoff before, he is raging against the dying of the light.
I think Stokes will play until the end of the 2027 home Ashes. The tail end of his career is different to both Botham and Flintoff in the way he prepares and trains, otherwise he'd be retired by now. His batting suffered this series, but I'd hate to think he's played his last match winning innings. His bowling has been the best it's been for years, although he needs to use himself more sparingly and not do the donkey work.
As for seam bowling allrounders, who is there in county cricket? George Hill is talented but his batting fell away last season and he needs a bit more pace. There's a great opportunity there if he wants to work for it. I think the one to watch is Matthew Revis (and not just because of his hundred in that horrible defeat at York). He needs to work on his bowling, but there's definitely potential there. Can either of them make that step up to be full allrounders, or will it be like the search for Botham replacements: Pringle, Lewis, Capel et al?
Maybe Rehan Ahmed will take on that role as a spinning allrounder? Let's see how he does in Division One for Leics.