My take on the only way specialists can work in this game
Now without doubt, I'd prefer original classes but if EA/DICE are insisting on specialists in the next installment, there's some things I hope they'd take into consideration.
1, Make specialists look like soldiers instead of something out of Fortnite, Destiny or Apex. These current models simply just don't fit a BF game. I mean, what the hell are these skins? What game is this? These are not soldiers.
2, Give specialists realistic, gritty in game voice lines like in past BF games and make them fit the vision of the game. They need to fit the global situation. If that's gritty then they need to be so also.
3, Think about how specialists would fit into a class system without shoehorning them into one. Their perks gadgets & weapons need to synergise with one another.
For example, Paiks sniper rifle profficiency doesn't synergise whatsoever with her short range EMG-X scanner etc etc. I could go on and on here. Maybe think about introducing new classes if you can't get the synergy right.
4, Massively tone down special abilities by introducing longer cooldowns & gadget usage limitations and a need to resupply. Also tone down the ability in general.
For example - Mackay's grappling hook. Give him 1 or 2 hooks maximum and then a need to resupply for more. He could set up a climbing/abseiling rope for him and his team. He shouldn't be able to hook onto things like he's something out of Quake Champions which is a fictional arena shooter that defies the laws of physics. This should apply to all specialists. Tone it down massively. Specialists like sundance shouldn't be able to wingsuit off of a tiny rock. Zain shouldn't get infinate explosive spam etc etc.
5, Give specialists separate factions so they don't all look the same and players don't get confused who they're engaging.
6, Make specialists a lot more customizable so there's more individuality and exclusivity. Sell models in the store but let players apply colours and camo's. Don't rip players off by selling the same models but with different colours. Don't forget it's not a free to play game.
7, As a general rule make support players a more desirable pick to encourage teamwork.
8, Think about how these specialists work on every type of map so map diversity isn't totally destroyed. I think we'd all like to see real urban, naval and CQC maps again. Specialists would need to work on all maps. 32 dozers on a metro map just won't work.