Well, a lot of speculation about Tomasi's upcoming "event" starting in April involves the idea that it will result in the return of Damian Wayne is some form. The evidence for this is:
1) the current plot trend of the Batman and ... line;
2) the fact that Secret Origins features Damian in July just as the event kicks off;
3) the fact that the teaser image for Future's End features a male Robin with light skin and dark hair who is apparently either a teen or in his early twenties. Tim Drake, Dick Grayson, and Jason Todd are all accounted for in Future's End or Five Years Later solicits, and none of them can be the Robin in question. On the other hand, a fifteen year old Damian (which he would be if he returns this year) fits the description. The only other candidate we know of at the moment would be Cullen Row, if he suddenly evinces heroic tendencies not so far in evidence and becomes the openly gay Robin many want Tim Drake to be;
4) most importantly, Warner Bros Animation has started releasing movies featuring Damian, and the timing of those movies and this event probably isn't just a coincidence.
An objection to this would be that it is too soon for Damian to return, and that such a development would make a mockery of the Requiem arc, since putting Bruce through the five stages of grief would be pointless if it's all going to be undone a few months later. But Warner Bros could probably care less than a fig for the coherence of DC Comics narratives, and they have shown themselves to be willing to arbitrarily advance DC timelines in the past, which is why Flashpoint ended up being a reboot story when it was not supposed to be. If DC is under duress to get Damian off the bench and fast, DC might be in the process of quietly retconning the whole Requiem storyline away, or at least of relegating it to the misty neverland where stories like Jason Todd: The Lost Days and Bruce Wayne: The Road Home lived before the reboot. Almost no one has seen fit to refer to the events of Requiem recently, I think the last reference was a passing nod in Tynion's RHATO run. In the Batman/Superman Annual the confrontation between Jason and Bruce in Ethiopia is ignored, and Tim does not mention the events in Greenland during Batman Eternal #5. Barbara may be referring to Requiem with her "you're one to talk" remark in Batman Eternal #4, but the remark is so vague it could refer to almost anything. It seems that, like The Road Home, DC is moving Requiem into an area of "we aren't going to formally disavow it but we aren't ever going to do anything with it or mention it again, so feel free to go on as if it never happened." This month's Batman and Frankenstein will tell the tale. If the vivisection doesn't come up, or if it is given one line to be quickly swept aside, then DC will be saying of Requiem, "nothing important to see, move along."