This may have been posted before (if so I missed it, hence my reposting logic).
Anyway, Penguin have just released the final volume of 3 in the Modern Classic reprint of HPL edited and annotated by ST Joshi, with corrected text also by Joshi!!
For those of us on the eastern side of the atlantic, the primary previous source had been the Granada 3 volume omnibus, mine dates from 85.
The new reprint is far better than that and includes some of the "missing" tales from the Granada editions, that have been in the Arkham editions, such as He, Cool Air, The White Ship, Dreams from the Witch House and more.
I have communicated with the Penguin editor and she tells me there aren't any more currently planned volumes (poetry or letters).
Notes by ST Joshi add to the interest.
I realise many consider what's his face, Robert Price, the main man for HPL discussion, but I find him tedious and conceited, and hold his edited Chaosium volume : "Tales of Tsathoggua" <sp> as an example of the worst type of appalling Lovecraftiana, if I may use that word.
(I have nothing to do with Penguin, I just picked up my copies)