The new Navy issue Dreads seem to be well balanced. They and deployment of mini-jump capable carriers, imo, is where the game is trending.
Doing it for other capitals is probably the way to go long term to get the resources needed to produce the base ships back towards to older recipes.
In that way, owners of older say super carriers have an advantage to complete the process of an upgrade vs. a new ship off of the line, should they do the conversion. A new ship has to be in service for e.g. 3 months or something so that the process can’t be gamed for the buffed stats.