I think that we will soon see Telegram rewarding people for using Telegram with their own coins,
so sadly I must say that I dont see any bright future for this project.
Then again, I may be wrong....
I don't see bright future either, but because of other reason. I don't see any big income for a new messenger for at least several years. No income - no sourse to reward users, no reason for them to change platform.
A lot of depends how many person use the messenger and how big is the ecosystem of messenger. The tokens of the messenger must be in demand.