Honestly, I think it’d be better if IF waited until the split scimitar was mainstream in the Ryanair fleet. It’d be a bit weird atm to go to Stansted or Dublin and see a ramp full of Ryanair 737’s with split scimitar winglets.
Personally, I can’t see IF adding a new livery where the only difference is the type of winglet. It kind of goes against the aim of increasing diversity in the IF fleet. The difference is that the easyJet liveries for example are completely different.
I’d vote for this livery to replace the old one once it has become more mainstream.