it would be interesting to see a mix between turn based and realtime.
I can see a couple of systems:
1) Each player makes turne based options and then as the turn plays out you have real time options.
2) Turn lengths are decided by each player. Turns spend points and turns that are larger in scope, e.g. move 10 units across the board vs move 5 (twice) would be more efficient but you would have less control. You could group a series of moves into 1 turn and let them play out. The other player could then react to your large set piece. If your move is interupted by a quicker move your move would be interupted and you would get a free reaction turn.
explaining that in more detail.
imagine an 10*10 board.
Player piece A is at 0,0
opponent piece B is at 5,5
A moves from 0,0 to 0,10
Opponent can see this trijectory and moves B from 5,5 to 0,5. A fight begins.
Player can also see Opponents move but cant do anything since his turn is longer. If it was short (like 3 squares, he would be able to make another move after his piece has reach 0,3 before the oponent has reached 0,5. Ofc the oponent would not have made this move if he saw the player moving to 0,3. My head hurts!