I haven't played SSB4 for a little over a year since I moved, so I wonder what prompted the lack of interest. My friends who still play tell me the top tiers are way too dominant and basically broke 2v2 beyond repair. It's very sad... SSB4 was actually quite balanced for a while after some post-launch nerfs and before the last batch of DLC. Also a bit sad about SFV, I do think it's a fantastic fighting game that just needs some rather crucial tweaks. To be honest, it's still my favourite fighting game at the moment.
Anyway I'm happy for Tekken! It's truly a superb game (possibly my GOTY), I hope it becomes more popular.