It's still possible with AppGameKit 2.
- Find your AGK2 app on your mac
- Right click, 'Show Package Contents'
- navigate to /Contents/Resources/Tier 2
- copy that folder to somewhere like /Documents
- copy /Documents/Tier 2/interpreter_ios and rename it to your project name
- copy your bytecode.byc file from your AppGameKit project and put it in /Media
- open '/Documents/Tier 2/yourproject_ios/agkinterpreter.xcodeproj' in Xcode
Seems to work with some futzing around. Be wary about renaming your project file from within Xcode 6.3 though, it will crash and leave the package open.
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