Chances are... it's going to end like his previous manga. I mean think about it - it's basically guaranteed that he isn't going to have the real protagonist end up with a girl, nor with the fake protagonist. It's not even a real world. My guess would be that in the end, he'll have shown that 'God' enough galge experience some way some how, return to his world, and probably forsake galge altogether.
Doesn't mean the journey won't be interesting enough to read along the road. Otherwise you're better off just putting this on hold until it ends before jump to the last chapter to confirm/deny your suspicions.