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What if we construct generalised chess variant? Which does not bring new mechanics into the game, but expands the existing ones.
Knights, rooks, bishops stay unchanged, They are already capable of fully utilising their ability.
Queen has a combined power of 2 other piecetypes, rook and bishop. Why only two? Why these two? Instead of answering those question let's just expand:
Why pawns are in the front? Well, this is not an arbitrary structure - less valuable and more replaceable stand in the front to be a shield and prevent immediate danger on more important warriors while entering the battle. But the order of pieces on the first rank... Let's make it fully random. 2) First row positions are fully random and not symmetrical. This way we cover classical standing, 960, and all those which do not follow the 960 limitations (king between rooks, two color bishops).
King between rooks was made in 960 to allow castling. That is the narrow ability, which is targeted by this variant. Why only rooks? Why not after moving? 3) King can pull a visible friendly target piece to the king and jump over it. Both 0-0 and 0-0-0 can be viewed as a narrow case of this rule. But in or generalised variant we should be able to pull also vertically and diagonally. Delete the limitation, that only rooks qualify, and that only once we can perform that. Queen obviously also gets this ability. Thanks to that rule 960 limitations are unnecessary: king does not need rooks on both sides to castle, and bishops can change their squarecolor by being pulled, can be used if they spawned on single color.
Pawn. Double move works ONLY from a starting position. In generalised chess we allow the double move whenever. En passant. Pawn captures a pawn, that has just crossed the attacked square. 4) Pawn can immediately capture ANY piece that has just crossed the attacked square. That means queen also can double move (which overlaps with her rook ability and brings nothing new), and en passant whoever tries to cross its huge control territory.
There is one more thing, which nerfs Queen bit. King characteristic: cannot be left in check, if impossible to avoid - you lose. Queen inherits this property automatically.
Pawn can promote to the queen, but would you want to increase the number of your pieces that are vulnerable to checks? I guess yes, if the position is under control, but better take a rook if position is complicated. Queen can also promote and turn into any other piece. Might be usefull to escape a check sequence. But if it promotes into a pawn, it becomes a dead weight as pawn cannot move backwards. (But you can use your king to pull it back 😉 )
To sum up.
Contact me if you would play this Generalised chess variant by mail/messages.