I never read 5ym books. It's just not my trek. I pounce on movie era. TNG relaunch is getting...cold. As is ds9. Ds9 barely resembles the show anymore, though they had an upswing in the last two books. The 'this book happens inbetween' is getting real old real fast though. It's like treading water, and Dax and Bashir may as well have joined Spock Prime.
The Voyager relaunch is consistently good and does have a jot of Neelix and occasional Tuvok.
For me though they all suffer for the opposite reason to the OT.. I find it harder and harder to give a monkeys about new characters, or even Ro, when the guys who should be on the cover are barely getting a line.
So I too would welcome some TV era stories, and would regularly buy movie era if well done like Voyager.
I also accept that for the movie era and TNG there are a hundred books from 20 years ago that fit in there, and fewer for ds9 and Voy...but we are in almost Star Wars EU territory now, where things are barely recognisable.
So yeah... 80s is in. Give us 80s Trek. Don't make me take up writing fan fiction just to get a fix.
You should remember that with TNG there are a few things from the TV era that are reflected in the current books:
-Death/departure of characters: During the show we saw the death of Tasha Yar, the departure and return of Dr. Crusher, the joining and departure of Dr. Pulaski and the joining of Ro Laren and her leaving the ship and eventually Starfleet. Even
Star Trek Nemesis had setup Riker and Troi leaving for the Titan. So even if you had a stand-alone book set within the TV series, you could easily have a book set with no E-D present, but just a mission that Ro was on during her Advance Tactical Training.
-Wesley Crusher had left witht the Traveller
DS9 also had a few things with its series finale:
-Season 6 had killed off Jadzia Dax, so we had Ezri Dax.
-Worf was headed off to Quo'nos to take up the Ambassadorial post at the Federation embassy. Nemesis established that while Worf did take up that position, by the time of the movie, he had returned to the Enterprise for some reason.
-Captain Sisko was with the Prophets. So while he may've still been in command of DS9, he was MIA, along with his wife expecting their first child.
-The O'Brien's were returning to Earth with Miles taking up a teaching post at Starfleet Academy.
-Odo had returned to the Great Link to share his experiences with the link.
-Nog and Leeta had moved to Ferenginar to become the Grand Nagus of the Ferengi Alliance
-Gul Dukat had been killed
-Damara was also dead
-The Female Changeling was in a Federation stockade
-Chancellor Martok was heading back to Quo'nos to take his place on the High Council
-Weyoun 8 was dead, but there were still more copies in the Gamma Quadrant.
-Kira, Jake Sisko, Quark, Bashir and Dax were the only series charactes left on DS9.
Voyager also saw a number of crew members leave in its final season, aside from Kes leaving for good in Season 6:
-Lt. Carey was killed in season 7.
-Neelix had joined the Taalaxian colony as an Ambassador for Starfleet
-Voyager had finally reached Earth.
And with Voyager, I think a lot of people were disappointed by how the producers ended the series with Voyager reaching Earth right at the last second, with no follow-up to how the crewmembers are accepted back into Federaiton society, especially since, while they had worked together for seven years, a number of crewmembers, such as Chakotay and Torres were still considered criminals by most of Starfleet for their roles in the Maquis, which had started the entire series. So I like how the books have continued the different 24th century series, and how you see the characters crossing over with each other (something that I wish we had seen some more of on the TV shows, since it would've been nice to have seen a few characters from TNG make an appearance on DS9 at least once, or twice to see what they were up to during the war.