During an interview at SDCC Grant was quoted as saying.
“I think we can state Flashpoint does not last all season long,” Gustin said. “But there are permanent ramifications.”
Well I can see this going two maybe three episodes because the comic was very universe shaking. So maybe just long enough to mix a few more characters into this universe? Maybe establish Earth -2? Maybe it doesn’t matter because they’ll reboot it in five years. Season 3 of The Flash will run October 4th, 2016. See the run thing I did there? I’ll just show myself out.
-Jason The X