It seems to me that SS&C has already given us some indicators of what will happen. Go to their website and ready the press release regarding the acquisition.
SS&C expects $150 million of run-rate cost savings annually, achieved BY 2020.
How do you think they intend to get $150 million in run rate savings BY 2020 if they don't reduce staff and make some significant cuts in 2018 and 2019?
SS&C plans to fund the acquisition and refinance existing debt with a combination of debt and equity.
So...it seems they were planning to fund the purchase with a combination of debt and equity, if that's what they did then they'll have debt that needs to be paid.
I am pretty sure "big things" like this can happen quickly, haven't they in the past? You don't have to look too far back in time to see that DST has also reduced staff in companies they've acquired within the first year (or less). Unfortunately, they fact that "they" don't really know what most departments do is irrelevant, as they now have DST management to educate them.
I don't know what is going to happen, but indicators seem to be pointing in the direction of some fairly significant restructuring.