It kinda depends on "our expectation of the name Titan"
It also depends on how we envision Star Trek, and how open we are to its ideals, be it original or Ira/Berman-ized.
I only respectfully ask that we be careful not to swing the pendulum not too far to the other extreme either. There are some that do tend to want to class the Federation as weak and anemic .. etc .. "passive" if you will. Personally I believe that while NOT EVERY ship would be armed to the teeth .. I do believe that after the encouters with the Borg and the Dominion War ... there would be noticeable improvements in the ability of the Fed ships to defend themselves.
I thought of the Federation as strong, but not war-like. Galaxy-class Starships were powerful at their early days (and still are, without a doubt), but were not overdone as they were ships of exploration. That does not make 'em weak. There will always be bigger, more-powerful threats out there in the universe, but we don't have to give up the original ideals of Starfleet in order to defend the Federation and arm starships to the teeth all the time.
I guess we can continue debating using our views/opinions in the debate, or we can simply disagree and get on with it. I'm not as much of a fan of the Trek that popularized DS9, VGR, and ENT that caused many fan-made warships that seemed better suited for a TNG-themed SFB game than Star Trek.
Buzz, I much rather preferred the concept that you and Azel developed for it, the sort of neo-Ambassador-class, a cost-effective successor to the Galaxy. That would have been preferable to the idea outined for the contest.
I don't think a class of Starship that had been replaced in main roles could suceed its successor. And the Ambassador-class, new or old, is 526 meters, much longer (and perhaps bigger in general) than the Luna-class. If the sketch you mentioned is a "Neo-Ambassador", it might have to be reworked to be smaller if it's going to be a design entry for the Titan. I believe a class like the Luna-class could be more resource-efficient (I'm still in compliance with Gene's vision. That includes some issues concerning money that he addressed from time to time) than the Galaxy-class, but considering her description, she could be a tough explorer, but not as long-range capable an explorer as the Galaxy-class might be.