If you have any bitcoins on an exchange you will want to transfer them to a cold wallet, ie. ledgerwallet or trezor or a few others to keep them safe from a potential blockchain split or fork on or around August 1st. In the past exchanges have had problems keeping the coins safe during a fork or chain split. You could also print them off on a paper wallet.
Other than that you should be safe if all things work out with the miners and the develpers and the users. Lots of intersting perspectives to the scaling debate. Good reasons for keeping all sides together and move Bitcoin as a single coin forward. I guess worst case if there is a split you will get some extra coins. Ethereum's market cap did increase after their split but it doesn't reflect well on the community when it is unable to solve these issues together.
Go Bitcoin!!