I don't even know how that could work with the current sandbox. Gone are the days of BF1942 where you spawned with player controlled destroyers and submarines.
I'm going to assume patrol boats, gunboats, and maybe some amphibious vehicles. If they reboot Gulf of Oman or Noshahr Canals again, perhaps an aircraft carrier spawn for NATO. It might dictate the flow of gameplay on newer maps if there's a large enough body of water, but it evidently won't do match for the existing ones and their lack of water.
I stopped playing BF1 too, I also thought that game was shallow. It was technically impressive and I enjoyed some of the conquest maps, but it was very similar to the current state of BF6.
As I said before, part of BF1's problem for me was the lack of consistent updates at the start. It took several months for them to include ribbons, which seemed like such a no-brainer I was puzzled they were absent in the first place. BF6 has those CoD-style accolades tied to dog tags so there's at least something, though I wish it did the thing BC2 had where it showed
all the gamertags of the people you acquired dog tags from, not just the most recent.
My opinion is BF4 > Vietnam > 1942 > BC2 > BF3 > BF1 > BFH > BC1 > BFMC
Currently I think BF6 is hovering around BF1/Hardline.
(Played very little of BF2 and 2142 because they came during a busy time in my life, so I hesitate to rate them, and I avoided BFV and 2042)
It's hard for me to rate them nowadays due to my opinions. I avoided BF2 partly out of principle - having such a limited-scope bot mode and weapons that only unlocked in online multiplayer really flew in the face of what I loved about BF: Vietnam. Likewise BF4 came out after what I thought was pretty quick turnaround from BF3, and DICE had made clear their intent to release Battlefields more frequently to compete with CoD at the time, which I felt wasn't necessary. This along with the controls feeling different and lootboxes generally made it less enjoyable to play and quicker to drop, though I'm sure my opinion of it now would be higher.
I guess on the whole of it, I'd call BFV the worst. Not technically, but because DICE were so full of themselves they killed an easy WW2 slam dunk with their political tripe, and I take particular offence when it's made against the soldiers of WW2.
We already see them constantly posting updates on what they're working on on Twitter, and we also know that we're getting three big updates from October to December, with 3 maps in each update as well as new guns in each update so
I think you mean 3 maps per season - Season 1 spans 3 incremental updates from October to December, though their announcement describes it as just one update.
Don't get me wrong, I think they've done a phenomenal job of turning around the franchise post-2042, and they've been going from strength to strength thus far. I just remain cautious that they could easily fuck it up, as they have in the past, so I keep that in mind while everything's gravy. It doesn't take much for devs to decide they're better than you and flip the switch to 'FAIL' in this day and age.