Those mentioned move and utilities doesn’t makes him top tier but it does help him at least to cope up with the environment. It’s not about making him top tier but rather making him have a potential from the usual he was in UMVC3 and TVC.
Since everyone had new updates and flash moves in MVCi that can enhance there mobility option HULK gets wall jump and Thanos gets air dash. So Ryu could also bring back his Air Dash in TVC since his a martial artist.
Ironman, Cap, Dante had nice movesets updates in MVCi beyond there UMVC3 counter parts. While Ryu just need the usual in UMVC3 like Ren Hadoken and Hado Shoryuken.
Characters made from scratch like Arthur and X had there “power-up” based from there games and lore. So Ryu could also bring back the Hado Kakusei like even without the buff damage and drain life other than updating his 2 hyper combo to a better powerful version in UMVC3.
Utility provided in UMVC3 helps him to cope up the situation like the others that can also used the gem advantaged along with there new mobility option and new special moves.
Even smash gave him new tools to make him effective to their gameplay system.
 Ren Hadoken
 Hado Shoryuken
 Hado Kakusei -without damage buff other than super enhancement like in UMVC3
 Air Dash
He doesn’t need in fact “new moves” or “new” stuff what he needs was his usual tools isn’t broken in MVC standard compare to the new update of others in MVCi. It doesn’t even make him top tier or threatening to others than just being the usual in his UMVC3 and TVC counter parts.