I just finished a beta version of a merge of veqtrus's SegWit code with my 1mb_hardforked+lowmem code. I've also added a couple of things that should improve the likelihood of it working with altcoins. I'm testing with Bitcoin right now. I'll try to have the testing done and the Bitcoin code ready for others to use within a couple of days, and then I'll work on the altcoin stuff and test it with Litecoin.