With the news that Spider Man 4 is on hold indefinitely from TMT's buddy Rob over at IESB, I would love somebody like Raimi to take over. IF that news is indeed true, the next Spider Man movie you see will not be the Spider Man 4 as you know it but something else all together. It was always odd that the studio had another writer working on 5 & 6 when there wasn't even a script for Spider Man 4 yet, especially since the writer was somebody Raimi didn't want involved.
Last I checked WB didn't want the type of director that Raimi is, too much control, so on and so forth. However, with all the time that is going to pass, I think they will change gears. Not to mention the changing of the guard over to Robinov, who sees things a lot different than Horn but has been playing the company line right now. If Robinov does indeed get the full reigns sooner rather than later, look for him to make a BIG splash of some sort with one of the properties, whether it be Superman or otherwise.