It's a soft fork that's going to happen and it has the potential of being very painful. Forks are always complicated (and a hard fork is planned for next year but theyre pushing earlier now), but it can have major short-term effects on BTC's valuation.
I thought it was something new you were worried about cuz when we talked about it the general consensus was just take your BTC off the market but your post seemed like you're concerned that won't be enough