As i'm a Portuguese native i'll try to write my idea to increse the game experience and make the game more attractive to new players (AS AN EXAMPLE not a COMPLETED IDEA).

- Equilibrated Bosses or New Line of Bosses Difficulties.
I would make a suggestion of a new line of difficult to the Bosses Missions that will affect Snarbolax, Jelly King, Roarmulus Twins and Vana Duke - An ultimate difficult that will make the bosses change giving them new powers (A Boss Remake at the Ultimate Difficult - Can may increase the players size at this Ultimate Difficult). It would make the players get often to the other missions as they take to Vana Duke. All bosses will give a way to farm crowns and Tokens and imporant items as the Vana gives. A Remake for the Token Market for the last three bosses except Vana (30 to 50 (Maybe) Tokens Items).
What i'm trying to write here is that the Ultimate Difficult will make the bosses or the game Story Line more EQUAL or Equilibrated and attractive as Vana is.

- New Line of Weapons or Only Charged Attack Weapons.
As the bomber class that has only charged attack - The bombs works only that way. That mechanics could be bring to the GUNNER CLASS.

GUNNER CLASS - A Machine Gun (Mini Gun Class) that only has the Charged Attack and Decreases the Movement Speed and Charge Attack UV when it is active. (You must fill up the Charge Attack and Can't stop shotting until you get hurted - Not able to move fast while u're shotting because of the Movement Speed Decreased in the Weapon UV). Able to Aim while u're using the Charged Attack and Shotting.
In another words a Minigun Line of Weapons.

BOMBER CLASS - A Turret (Turret Gun Class) that only has the Charged Attack and Decreases the Movement Speed - not able to move while u're charging to Deploy one.

- New Haven.
This ideia is to make, for example, some reskins of Haven and give to the players a chance to Choose btw those new Havens - As another outpost in the story line for example.

Then i tried to increase an ideia for a "MAJOR" update (Necessary or NOT). I wish some players do not Blame me.