One of the leading theories in regards to how the FBI located the server, is that SR, or someone involved at a deep level with SR was actually involved with freedom hosting, and when freedom hosting was shut down, that person then sang and told LE where the SR servers were located.
It has also been speculated that Ross Ulbricht was just an SR admin that was set up to LOOK like DPR, but who wasn't actually the genuine article.
Could it be possible that the real DPR, knowing that the snitch at freedom hosting was likely to rat him out (possibly due to DPR's involvement in the pedophilia/CP business), that DPR set up Ross to look like DPR, and then came back now to set up the new silk road?
I'm just speculating but I think there may be something to this.