I am intrigued that the park might re-build the safari amphitheater. Though, I am not sure if what is shown on the map is for 2015.
I cannot remember if it was on this site or on another, where someone posted a park master plan of what Kings Dominion might have looked like while under Paramount ownership. There were many attractions on the map that never came to fruition. Or, it ended up being a very modified/different attraction that was constructed compared to what was envisioned on the master plan.
I think the colorized/highlighted map of the water park renovation/expansion, is the finalized portion of that master plan.
The rest of that map, that shows part of the Safari area with the amphitheater, is a future possibility. At this point, I don't think I can say the return of the amphitheater is guaranteed for 2015. Though, with the Halloween show being produced in that area this fall, it could be built in the near future (2015 or 2016).