Ubisoft Bucharest has enough problems at the moment.
First they have qualified the patch for RUSE, as apparently the developers of Eugene Systems had no time for it or were too expensive and this patch did not bring the desired improvements and bug fixes as announced. And now they have to fight with HAWX2 PC version because this game is full of bugs, tends to constantly app crash and the PC multiplayer practically does not work.
So there is no room left at present to support also such a niche game like SH5