Given the pool was put on top of a rugby pitch, which resulted in the shallower depth because they didn't want to destroy the pitch (a full depth pool would have weighed too much) - unlikely. The pool isn't a permanent structure, it's not going to remain there after the olympics are done.

I would be very surprised if they re-use it at all - an "above ground" pool of that size seems like it would be more trouble than it's worth to maintain over the long run.

A timelapse of the pool being put together: https://www.youtube.com/watch?v=jTuFidqy0yI