Board Thread:F/A Discussion/@comment-104.188.233.23-20160519011519/@comment-26248987-20160521030630

The next update, presumably called 7.3, will come out when it is ready. That will be for Minecraft 1.7.10.

Then, the next update after that will not be for 1.8, as they plan to skip 1.8 and go straight to 1.9. Alexthe666 confirmed this on the Minecraft forum thread.