Apparently the tear is minor and usually takes 1-2 weeks to heal, so he should be okay. It's good that he took off the entire BOSJ tour to do so. Either way, he's basically been wrestling with a fucked neck and back for years, so this I'm sure won't slow him down much.
But yeah, Dominion is looking like a stacked card. Yes a lot of it is WK rematches, but when those matches were excellent to begin with, I'm not complaining. The Goto/Suzuki Lumberjack match should be very interesting, and I'm definitely hyped to see who wins BOSJ to challenge Takahashi.