...featuring Hamlet & Ophelia, PC2, Romanze Op.35 and Suite No,1:
https://www.prestomusic.com/classical/products/9829031--macdowell-orchestral-works-vol-2
Have all of his orchestral works been recorded?
Wikipedia has this listing (scroll down):
https://en.wikipedia.org/wiki/Edward_MacDowell#Works
It looks as if Chandos have now recorded all his published orchestral works apart from the Second Suite. If they intend to produce a 3rd disk I don't know what they will add to it to fill it up - unless, of course, there is some unpublished material that has been unearthed.
I doubt they will, but they could - conceivably - include orchestrations published in 1923 by Woodhouse (1879-1939) of the Woodland Sketches.
They'd likely fill up the disc with orchestrations of some of his piano pieces. I remember someone orchestrated his Sea Pieces a few years ago. One of MacDowell's biographies mentioned that there are/were "sketches" for a symphony, though it didn't elaborate how much material existed.
There is such an orchestration @ IMSLP too but unlike that of the Woodland Sketches I would think it -too- recent - from a few years ago - to feel the least bit genuine in such a series...
By the way, Paul Freeman with Chicago Sinfonietta has recorded an orchestration of MacDowell's piano piece, poeme erotique op31 no6, before. I seem to recall it was the composer's own orchestration...