I'm only curious what will happen when we are 2099yr+ and miners are making significantly lower amounts in Bitcoin compared to now.
Will, they still continue to support the network of bitcoin?, Will there be another fork of bitcoin (i doubt it will change much), Will the price of bitcoin will be enough to pay for the miner's hardware and work.

Or will the network be dead by then some other Coin has taken over the market?

I can't comment for sure what's going to happen in the future regards to bitcoin but since it's the first crypto currency so there's a good chance it will survive but can't guarantee it.