The devs have mentioned in some video a long time ago, when entrenchment was in the works, that they don't like what they did to capital ships. Namely, they don't like the fact that at level 10 you can have all the abilities, so once your cap hits level 10, it doesn't matter what you've chosen, it will have it all anyway. That was the reason why Starbases don't have enough upgrade slots to get all upgrades, they require careful customization, depending on where they are and what you want them for.
Along this line I do not expect starbases to get much love, for the capital ship's extra ability levels are there just to fix the abovementioned issue. The extra ability levels are there to force a choice upon the player about which abilities to take. It's just that, to prevent you from having every level 10 cap being identical, to force you to think what you want that ship to be rolling about with. Starbases already fulfill this requirement so there is no need to fix them from this perspective.
So, to reiterate - I think devs consider the extra ability levels more as a FIX for capital ships, not a buff, therefore I would not expect buffs to starbases.
Sure it will be fun to roll around with a Kortul having his PS at level 5, regenerating 80 shield points per second all day every day (wild guess) - but that means he will lack either in the Jam Weapons or DS department. Yeah, he's pretty much going to be invulnerable to anything but a bomber swarm, but his already limited usefulness has simultaneously diminished by a big chunk.
As for the Titans, I think they're just going to be 50-ships-in-one. You pay the cost of 50 ships and get 50 ships wrapped in a nice looking big tortilla. That's all.
Oh and I can wager that the Vasari Titan is going to have pulse beams used heavily. That's the only explanation I have (except incompetence) for tweaking Pinpoint Bombardment to sensible levels while leaving the completely useless Pulse Beam upgrade line unchanged in the last patch.