when all the blocks where mined after that i dont think chaina will have the capibilty they have right now. or if people are thinking about the transaction fee devidation then let me tell you that the compitation level will be highest at that time because the difficulty will remain same and every body can invest a fixed amount on a machine and can mine and get a portion of the total transaction fees
As the other members here in the forum stated so there is no way that all bitcoins will be mined because the supply is that huge and the transaction fee or the mining fee does not compromise the supply of bitcoin. Aside from that there are many miners here coming from around the world so there is no monopoly in mining bitcoin here.