The next HideoTube is looking like it'll be released some time next week. It's supposed to be rather lengthy according to KojiPro. It was shot at SIE Japan and they're going to be talking about E3 as well as including behind the scenes footage.
It will be up tomorrow!
Almost there, Ep4 of HideoTube will be up tomorrow (July 13 JST) and with subs in English.