Thanks - this is the first post about a new "Segwit coin" that follows the rules I specified in the OP, so it's being added extra fast to the list
Decred is built by the guys who wrote BTC suite, btcd daemon and tools, the golang implementation for bitcoin that one one of the lightning implementations relies on, lnd I think. They don't have Segwit, but they have a malleability fix in place since launch, and have or will shortly have lightning working on their network. See top comment here:
I'm following Decred - not very closely, but I check their state every month or so. When they begin with LN mainnet testing, I will add it to the LN section of the list. If they have already begun and you know a source, then I'll be glad to add it soon - the last news I read was "maybe in Q1 2018".
Also, I would say Bitcoin shouldn't be mentioned based on the fact that the thread title specifies altcoin, which BTC clearly is not.
I do want to include Bitcoin because one of the goals of this thread is to compare its status with that of other cryptocurrencies. You're right about the title being wrong then - so I changed it.
