In a June conversation a group of Springfielders repeated there is nothing even on the planning list for an XDm45.
The explanation given to me at SHOT really makes the prospect a loser, unless they just run out of other ideas to expand/improve their line......One of the big selling points of the XDm line is the expanded magazine capacity. The gripframe was reduced whiile still raising capacity, and the adjustable backstraps were added. When the XD45 was released, they already squeezed out all the extra space in order to get it where it is. An XDm45 would likely end up with LESS capacity, even though it had the improved ergonomics, and would then be "more money for fewer rounds". Coupled with the limited market for 45 ACP in the rest of the world, and it's tough for HS to direct their energies there, rather than on more 9mm size guns.