I hope one day they just merge everyone to one ame so we can choose how we want to play
Except.. They literally just made the game to seperate it.. It would be rather counter productive for them to just be like "Yeah, sorry dudes, SH going down again".
There is no going back, and no merging games. People spend enough money on DP for it to be a problem if dragons became free, and enough money on SH to not move back to DP.
You can choose how to play, with two different games.