I've looked up the STP plans for my area. As far as I can tell, there are no plans to shut any hospitals or major units, but there aren't any plans to restore what we've lost, despite protests.
Our STP is a strange shape - long and thin and skirting the London suburbs. The main problem is with transport. As we're not that far from London all the transport routes (roads, rail, buses) tend to radiate out of London. There are few cross country routes - especially public transport.
The idea is to have specialist centres concentrated in fewer locations. It's actually impossible for me to reach some of them by public transport without going into London and coming back out again. Goodness knows how long that would take or what the cost would be.
In this area, we have no mental health services or minor injury centre/walk in centre. The official maternity hospital is already 30 miles away. The idea, apparently, is to use tele-health and district nursing teams. Unfortunately, the district nursing team is practically non-existent and tele-health is unproven (see dj's link). In any case, tele-health doesn't actually save GP time.
The STP groups were supposed to consult with the public. I looked on the website for mine and there's a short, badly worded survey - and that's it! No meetings, no focus groups, nothing! It's a done deal.