Just browsing through the raw videos of CP24's interviews with the Ent cast. (Kinda repetitive media schlock questions, yeah, but some of the answers were brilliant.) Anyway, Keating, whose interviews always kick ass, lets it slip that in the episode they're working on at present Reed goes onboard a Klingon ship where he ends up being the first human to see a photon torpedo, and as one might expect Reed to be, gets quite envious. Spoilers and interview timing suggest that this'll be "Sleeping Dogs." Ironically, a few people whinged about photon torp SFX being used in "Unexpected," and, well, it looks now like those actually were photons.
Incidentally, Keating also points out that there're two "biggie" Reed episodes coming up on his plate shortly.