Just about the only part of this rumour that's even remotely close to being exciting is the speculation that Ford (allegedly) deemed the story (not the script) potentially not shit in the form it's (allegedly) been presented to him. Or, more accurately, the part of the story that's related to his character. Yay.
That aside, I don't see how going back to the old characters is a good idea at this point. Leave them be, think of something new. Indiana Jones 5 is an equally horrible idea. Friggin' Hollywood :/