For reasons I have posted about in the past (click me), SegWit in any implementation is a poison pill. Bitcoin will cease to be Bitcoin if SegWit is enabled, by violating its own white paper, and will ironically become nothing more than a more expensive knock-off of Litecoin.
Markets hate uncertainty more than anything, so likely any agreement on Bitcoin protocols will be bullish in the short-term. However, in the long term, SegWit removes one of the main intents of Bitcoin – keeping all transactions on ledger.
Enter Bitcoin Cash.
Bitcoin Cash is a planned fork of Bitcoin that will reject and and all SegWit transactions, which will make it the only "real" Bitcoin after August 1st, and will include scalable blocks beginning with 8MB. However, markets being irrational and having been divorced from fundamentals for over a decade, I predict this is not a fork that will catch on.
If you are interested in learning more, check out the Bitcoin Cash site here:
One operational client is Bitcoin ABC:
Note: I do not endorse investing in this chain.