Getting a SFxTekken Fight Stick and want to future proof it question

I was reading about the Brock UFB and tried googling for some answers. So pretty much if I can just stick this in the Fight Stick it should be good to go for awhile? (Deciding if I wanna do this or just get a PS3 to PS4 Converter)

There’s nothing stopping me from just using the Fight Stick Shell and just replace everything inside it (I read it comes with Sanwa parts so I don’t think I would need to anyways) ? Like tournament legal wise. If it works for PS4, I’m good?