Expect many more Bitcoin forks in the near future. Airdrops will continue until it is unprofitable to do so. The legacy Bitcoin protocol will remain unaffected. The legacy Bitcoin network may experience temporary disruption should a significant portion of hash rate swap to an alternative chain. Once the difficulty adjusts on the legacy chain, any transaction backlog would begin to adjust and clear itself normally.
The best way to obtain the forked coins will be using a hardware wallet or exchange which guarantees a snapshot before the airdrop occurs. Technicals suggest a possible move to US$7000-US$8500 before a pullback to US$4600.