I would add Ashoka,Ventresa,Mando,Gideon,Rex,and Cad Bane as launch heroes. I think we could see Iden being replaced by the new campaign character. For DLC heroes they should add Padme and Jango Fett,Mace Windu and Savage Oppress,Cal Kestis and Second Sister (Or fallen order 2 villain) and Poe and either Hux or Snoke and Thrawn and Sabine.
For maps they should add Utapau,Coruscant,Mandalore,Sullust,Jakku (For original trilogy),and Exegol
For small game modes like HvV I would add Mustafar,Death star throne room,Jedi Temple,Anch To,and The invisible hand
Additional maps could be Dathomir,Umbara,Kijimi,Zeffo,Atollon,and Mygeeto
For reinforcements they should add Mandalorinas for alternate aerial troops who will have jet pack missiles and flamethrowers. A new class should be introduced called bodyguard which will have Jedi Temple guards,Magna guards, royal guards,and riot troopers. They focus on melee weapons and stun weapons like shock grenades
New infiltrators should be Gungans,Nightsisters,Shadow troopers,and Bothan Spies.
New Enforcers could be the clone gunner and Dwarf spider droid
New skins could be the Ashoka trooper skin,Mon calamari officers,and more alien species like Twileks and Biths
Hero skins should be Luke’s Endor,Bespin,and Hooded appearances. Anakin and Obi Wans hooded skins. Boba Fetts Mandalorian and “clean armor” skins. Vader’s scarred skin and his appearance from the new Vader comic (Where he goes back to mustafar and has a bunch of mismatched droid limbs) we could all see a Senate skin for Palpatine and a damaged skin for Phasma and a caped Grievous
For hero changes Bobas concussion missile will be replaced along with Palestine’s electrify and Obi Wans mind trick. These abilities will be reworked or replaced altogether.
Hero ships we need the Razor Crest, The Ghost,The Twilight, Souless one, and Obi Wans Starfighter