I've watched a few game play videos and here's my take on it.
1. It's a battlefield game. It's not a WW1 game by battlefield it's a battlefield game that happens to be in WW1. Far too many smgs, a bit too fast paced for what I think a WW1 battle would be, but it was on conquest mode. More on weapons later.
2. I'm really intrigued about operations mode. A bunch of battles spanning g different maps? A group of attackers vs a group of defenders? Objectives to be attacked and defended?Sounds like rush on a bigger scale. I hope the maps slow the pace down by concentrating firepower to a narrower front, will be excited to see gameplay of this. I did feel they missed a opportunity with this mode though. The plan for this mode is for it to last more than an hour but this can only happen if the attackers keep pushing forward. If the defense wins the match could be done in 5 minutes. They should make it like a football match, attackers fail, well, have fun because here comes the counterattack. Pushing the former attackers back would also make the battle be fought over already damaged land, allowing for the moonscape environment that one sees in old WW1 photographs. A pity.
3. This behemoth vehicles thing is a little gimmicky IMHO. Soldiers jumping into battle off a blimp firing from 2 or 3 machine guns? In WW1? Not sold. But it is cool to watch that thing come down.
4. Vehicles seem a little fast but they seem more or less balanced. In that infantry runs in fear kind of way. I hope they have cavalry for MP
5. Weapons. Sigh...When I heard WW1 game I pictured dug in defenders fighting infantry desperately using every bit of cover that they could find. I didn't picture soldiers running around every which way firing smgs at other soldiers runnig every which way firing smgs. I know that smgs were used in WW1 and figured they would be in this game but I had hoped they would be underpowered compared to rifles. Obviously not because everyone and their mother is using it in the video. I know this isn't a Sim of WW1 but it shouldn't play like a WW2 game.
6. Tactics. The video I saw was of conquest and that mode leaves a lot to be desired when it comes to tactics IMHO. I've always been a rush kind of guy, which is why hardliners has been gathering dust I my house and BF4 is in constant use. But in the video it seemed a lot more run and gunny than I would have imagined. Again, maybe operations mode funneling soldiers onto a narrow front will change that.
7. The environment. The game is beautiful and like how dynamic weather should make every match different from the last I like that the map remembers every crater, and that most every house can be turned to rubble. BF4 failed in this regard because of the tall Asian skyscraper maps left the map mostly intact. I used to lost running around in BFBC 2 using c4 to blast new routes through battlefield that the enemy wouldn't expect. I loved turning a well defended town into flat ruins after a good shelling. This game makes it look like that's comping back.
Conclusion. I'm cautiously optimistic that EA can pull this off. I has hoped for a game more true to the era but this is close enough for the realist and casual enough for the hordes of COD fans coming over after the infinite warfare fiasco. That said if they screw this up, infinite warfare has modern warfare remastered.