I personally hope he'll come back into DT at some point. Since a few years I'm not that 'DT fanatic' anymore, but I still like to listen to their records from time to time. If they visit Holland, I'm always going. I like SC and BSCL, but not nearly as much as anything pre-ToT. The band has grown into an 'old band' for me, in a way. I'll always love them the most for their old work.
And with that, I care for them with MP on drums. Don't like the recent output incredibly much, so IF there's a DT I'm diggin', it better be with MP. I really like his stage presence and everything, and he's just a great rock/metal drummer.
Even if the new DT album is very good, it's just not DT in my eyes. The ONLY good thing that will come from it are the absence of things like 'EVERYONE SURVIVED.. WHAAAARGH' and 'INVENTORY!'. Though that's fun, in a way, too. I really like modern DT, but it feels a bit 'lighter' for me, less meaningful in the darker, heavy songs. Whereas with 'The Mirror' or any early heavy DT song, I really feel the emotion. But circus-y DT is fine, too. Just WITH MP please.