Block reward will reach zero in about 1000 years....
By then then the fees hopefully make it profitable through it. But that is SO far off we cannot really speculate. Even speculating what will happen at having is hard to do at this point.
I keep hoping to see a value bump in BTC but it's been a lot slower then I had hoped. I don't see having as a big day on value jump as we know it's coming. So I think it's more slower process.