Chess is a good game the way it is. However, there are some variants where captured chess pieces can be "freed" and placed back onto the chess board. One variant which comes to mind is crazyhouse and its partnered version bughouse.
https://www.chess.com/variants/crazyhouse
https://www.chess.com/play/online/doubles-bughouse
There are chess variants for a reason. You can create your own variant if you want
It is not true that the rules
of classical chess have not changed over the centuries. The initial move of the pawn
2 squares has not existed since the beginning of chess.
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I would suggest a small change
. Many sports have made small changes to the rules
in order to make them more spectacular
. Reading the rulebook 
it says that the pieces are "captured"
, not "eaten" 
or "killed"
, that is, they wait for a soldier 
to free them. So when a pawn 
arrives 
at the end of the path he "frees" a captive 
. So there cannot be two queens 
(of the same color) on the chessboard 
. Each king 
, even sultans, has only one queen 
.