Its been over for months, and this past week has finally started showing the financial and campaign staff abandonment part of a campaign winding down, but its happening with a month to go with a candidate who really has no reason to care about party unity (which is the opposite issue that Hilary had in 2008, she was THE life long democratic candidate being forced to step down for the new during a tense primary season). I hope to be proven wrong, but I expect sanders to continue to be stalwart till the bitter end before conceding, how he concedes is anyone's guess at this point but my hunch is it won't be a unity speech among democratic supporters, but a unity speech among progressive ideals and to keep the good fight going forward, he exits the stage and doesn't campaign for anyone during the GE and goes back to being the independent socialist senator from Vermont, the exact opposite reaction that Hilary got praised for during the DNC nominating convention in 2008.
I would love to be proven wrong as a good concession speech would at least return some integrity to Sanders that I used to have. I actually liked him as a senator before he even announced his campaign and wanted him in the race because I found him to be a positive influence, but he hasn't been the messenger I was expecting/hoping him to be.