Who The Next Dream Theater Drummer???

Actually, this news has been out, but as one of the millions of fans of Dream Theater I do not feel good read the announcement issued by Mike Portnoy.
For all fans of Dream Theater would have known the name of Mike Portnoy ...?
Of course we already know that Mike Portnoy is one of frontman and founder of Dream Theater, this also makes us feel a little shocked and did not believe that MP plans to come out and join the A7X. How could a Mike Portnoy Dream Theater could leave and decided to join the A7X?
Heard this rumor I finally decided to surfing on the internet. And in an instant Google also provides links that make me feel a little relieved but still im felt can't  accept this reality. In the statement of MP, he stated that in the first MP to think over the past 20 years he lived in the world of music, after 20 years was he felt that he needed a break and plan to invite personnel DT to break or a break from the music world for a moment, but it turns out this plan opposed by personnel and personnel DT DT stated that Dream Theater will still drive even without Mike Portnoy.
Although Mike Portnoy stated that he feels very nice to do projects together Hail, Transatlantic and Avenged Sevenfold but MP explicitly states that he was not planning to come out and only a short break, and will not let go of Dream Theater that had been regarded as a child during this fosterage forever 20 years.
One thing that makes me glad that Gossip MP will be joining A7X are untrue, but what about the other DT personnel?
Whether they will seek a temporary replacement or completely replace the MP?

i hope not!
Dream Theater without Mike Portnoy?
T_T