As long as you control your private keys, it doesn't matter - you just need to be able to import those private keys into a wallet that will support it afterwards. However, I haven't seen a single one yet that has claimed support for this version of Segwit2x so likely just going to be a dud. I wouldn't bother if you don't have a substantial amount of Bitcoin to cover the cost it takes to move it to an appropriate location.
RE: Bitcoin $17,000 Target Update & SegWit2x Returns