Personally i really don't think that there is much they can do right this minute to fix this problem. For the gamer side i think the best solution is that they higher more people to allow the Featured episodes to continue on pace while having the same pacing for the season patches as well. Not sure if this would work in the business side.
So you get team A that works on developing FE's, thats what they do and keep the month on month off pacing, then have team B work on the Season Patch and keep the 3-4 a year pacing. Hopefully they have enough overhead to make this happen. Otherwise we are basically stuck with these luls between series.
What this lul is exposing is a lack of manpower. STO has a small team spread very thin, normally we don't notice because they have that much EPIC sause, but eventually the jar gets empty. (horrible analogy i know...)