I believe i read btcd does, but it is not on par with Bitcoin Core and is planed to be dropped.
There are no plans to drop btcd. I'm interesting to hear in what ways btcd is not on par with Bitcoin Core. btcd has a more modular code base, more readable code, better documentation, better test coverage, and supports everything that Bitcoin Core does along with a few things it either doesn't yet have or only has on branches and isn't part of master (for example, BIP0023 block proposal support).
Note, that we're talking about the full node daemon, not bitcoin-qt which includes the wallet stuff. btcd intentionally does not have the wallet integrated which is something that Bitcoin Core still hasn't separated out even though I believe it is on their list of things to do.
I was looking into it to see if I could use it for solo mining, I believe it is on par as a node, and as you point out probably better and continued support seems inevitable, but if I recall correctly I was looking at just a development road map and it didn't seem like there was demand to support the mining functionality, going forward I felt it wasn't worth risking if a block didn't propagate so I am not sure it will be used for mining.