I think that could be a good idea. They've done too much. Civil war, 'will change the marvel universe forever' only to be abolished sometime after dark reign. The countless avengers. Captain America dying and then he comes back. Ressurection after ressurection. A reboot might be what they need.
Though, if they did that, how different would it be? Who would weild the sheild? And, on the main topic, who would be Daredevil?