Not all, no. For instance no EEA without FMOP looks like it's a given.

With that said, those portions that are indeed open are exactly the problem for the next few years (more if rumors that article 50 won't be invoked before 2019 are true). Businesses don't know what parameters to use on profit calculations for future investments, hence investments from abroad are virtually guaranteed to shrink. There's a reason estimates for UK GDP growth have been revised downwards for 2017 and 2018 due to the "Leave" vote.