BTC has scalling issues, there were many fixes but it seems one can really work out - UASF. User Activated Soft Fork.
Some people predict there might be 2 Bitcoins after August - depending on how politics work out. So we can have again scenario of what Ethereum faced with ETH and ETC. This is because some nodes will be skipping some transactions and some (old ones or not liking it) will not. This may get into disruption of whole network.