Well, I've had my mind more around fighters. I think they are more suited for hit and run operations than capitals. So I'd say that both sides should be restricted to fighter class ships in the shipping events.
As for the last one (the military parade), it would necessarily involve capitals, at least on the RM side (which I consider a great disadvantage to us since we're inherently fighter jockeys). It would be awesome if at least one of RM's two battleships could be involved in it, but I'm not sure the admirals will be able to make it. It would make sense. But, if they aren't around, it could be on purpose not to take the spotlights away from the new ship.
I'd say that we'd have at least the Cruiser and two gunboats (to mimic the NPC Cruiser patrols) and a bunch(?) of fighters class ships. So I'd say that for the last event we could extend the limitation for the pirates as well.
I liked the idea of having a hands around the throat fight between Krieger's and someone else's Cruisers, but as pirate tactics go, it would make more sense for them to bring something of a bomber group with fighter escorts. Don't see much tactical advantage in taking cumbersome capitals to a place infested with military ships of various kinds. As RP goes, I thought that Varyag would disregard tactics to have a go at Krieger's Cruiser because there's a known and documented grudge between him and the RM. So perhaps he would see in this event a chance to get even in style. But that's me role playing someone else's character. I just think that if there was hostile Cruiser present, his would be the cooler option.