I want to get back into STO, but I'm so far behind and its been so long since I played that I can't even remember where I left off.
I might make a new character and start from scratch.
As an altoholic, I am in favor of making new characters. Even more so when you consider the fact that the Romulan and Cardassian story arcs have been completely rewritten since launch, so it makes sense to make a new character, not to mention the "new" FED tutorial.
However, I would recommend keeping your old character(s). The Admiralty system is basically the DOff system with ships, allowing you to send ships of the same type that you own on missions. So older characters who got the extra Admiral ship tokens and anniversary ship unlocks would have an advantage with this system. My PS4 characters are stuck with the 6 free ships you get leveling up and the one or two shuttles you pick up during normal play, which severely limits the number of Admiralty missions I can do.
Perhaps running a new character mainly to see the new stuff and get up to speed on where your old character was?
In regards to the Tzenkethi, I thought they were supposed to be feline in nature.According to Memory Alpha
Also, maybe it's just me but their heads give me a very distinct Halo Elite vibe.
the name Tzenkethi is derived from the Kzinti (Larry Niven's cat people) and Tsankth (something from the RuneQuest and HeroQuest RPGs). As Xero said the STO appearance is based on how Robert Hewitt Wolfe imagined them which was "heavily-armored lizard things". In the Typhon Pact novels they appear as humanoids, but like Kif on Futurama
they are supported by fluid filled sacs rather than bones. Of course as the STO appearance differs from the novel appearance, it has resulted in a flamewar on the STO forums.