Bitcoin may hardfork.
Even though it is now unlikely, because most miners are signalling SegWit2x activation.
SegWit2x requires a hard fork in November of this year which could split the chain into 2 or potentially 3
The chain which is the most mined will prevail
There will be a lot of uncertainty in the market
Altcoins will fall in value if Bitcoin does
I’m using Litecoin/Ethereum/Monero/Decred as safe havens for now
If you’re using exchanges/web/app wallets to hold bitcoins they might not be safe
Only having your own wallet such as a hardware wallet will create an additional wallet with the new version of the Bitcoin if it does fork.
Good luck!