One thing that they will need is someone to put a halt to
any change to canon - that's one thing that Enterprise ruined about ST (Klingons in the first episode, and a starship that looked too much like the Akira-class).
Prior to "Broken Bow," it was never established in canon when Earth/the Federation made first contact with the Klingons. It's only fanon speculation that it was in the 2200s.
Who cares if one ship shares design elements with another across a couple generations? I thought the Enterprise D looked like a bloated whale compared to the TOS Enterprise, but I didn't base my judgement of the series on that, nor did I feel it "ruined" Star Trek.
We must guard ourselves against overreactions to what we think about superfluous things like ship designs and focus on things like good storytelling and that je ne sais quoi of Star Trek that ignites the fires of exploration and hope for a better future within us.
Davy Jones
"Frightened? My dear, you are looking at a man who has laughed in the face of death, sneered at doom, and chuckled at catastrophe! I was petrified."
-- The Wizard of Oz