To get me to switch from the X1D ii to a new X2D it would have to offer the following:
1.) X1D ii-housing with 100 MPx BSI Sensor
2.) IBIS
3.) EVF with min 5 MPx OLED
4.) X1D-battery-size
That´s it.
One more thing:
a 24mm Tilt/Shift lens would be great!!
One of those whiz-bang flippy LCD screens like on the 907 would be handy every now and then, my knees not being quite as limber as they used to be.