Should I come back...?

It's probably been about 2 years since I stopped playing Project Sekai... Yesterday, after seeing a post asking 'What's your favorite original song in Project Sekai?', my sibling and I had an MV viewing party. Suddenly, I really wanted to play again...!! But now there's Upend, and some difficulties have been raised (I know the notes themselves haven't changed), so... Can a thumb player... make a comeback to their prime... lol