as long as you have access to the project files such as the .json or .gbaproj, then its just a matter of exporting it to pocket using GBstudio 3.0 or higher
Bought the same edition. Those files aren't included. However, for what it's worth, Izma did just Tweet (@iwazaru91) that they've been inundated with questions about a Pocket formatted version of Deadeus. They said Deadeus was built using GBStudio 1 and Pocket requires a conversion to GBStudio 3...the latter of which breaks the game engine. They added that until they get a Pocket of their own, they won't be able to test it properly. So, I suppose we wait.