If X-wing and Armada are different enough to coexist, then lessons learned developing X-wing are not something that will likely translate to Armada.
FFG has made more then a few LCGs at this point, and because they are all sufficiently different they all suffer thier unique growing pains. Some are more balanced initially then others, but often previously lessons learned are not applicable.
The one area you can expect improvement on is rule templating. The general timing structure and way abilities are worded to clearly portray thier function is something that has improved.
But here is what is a relative certainty. Elements of Armada first wave will be overly ubiquitous (your Biggs/Howlrunner), some concepts will just fail to gain traction (ordinence), and others will be underwhelming to the point of requiring some from of rebalance ng to remove them from the land of misfit toys (Tie Advanced).