I just think no one needs to worry about fleets and that we will screw the fleet system/etc. It will pretty much be the same, for the most case the only major difference will be 5 to start a fleet to prevent fleet spam, that's really it. Though it's written a bunch, we'll adjust it when the time comes and nothing is set in stone yet. But I wouldn't worry about the whole fleet system and it being like a jail or anything like that, and for the most case people won't even realize its there, (Aka don't teach fleet members to exploit/hack/etc, basically don't do stupid things. ). But yeah, trust me on that one
Declaring wars has always been around, becuase you normally want to let the other people know you are in a war. But I'll make it pretty cool/automated, even broadcast it on the main news for example when two leaders agree on a war, something fun like that.
Throwing insults/name calling and talking about each other is normally apart of war, long as its kept within borderlines, like not racial for example. I want to promote good wars, but theres only so much 'trash' that can be dealt with before you get sick to your stomache.
For fleet wars, the server may be able to automate it. Aka you pick what time on the schedule, both parties agree, the server sets it up for you, and the winner is determined on the one of the following you pick: A. Total game points earned (prestige), so colonizing/etc counts, winner is the team that did more.. Or B. Most kills against each other for an hour or up to a certain kill, the standard way.... Winners are then recorded automatically and there is no dispute on who won or lost. Should be possible when scripting is added anyways, and I'll make some fleet war functions for the main server. This is way in the future though but it should be a great idea and make fleet battling alot more fun when its all recorded

Wars could be ended after a certain objective is met too, not sure about this yet. Like '20 wins over the enemy fleet' in total, so it could go for a few months before someone has 20 wins. The objective would most likely be determined by the player, though it can just be a endless war too, I suppose... But there is no fun in that!