What i was to unerstand was that he felt the SE (which was the latest release at the time) was what he wanted people to see, and thus he wanted to destroy all previous copies. Think about it - the version he released as 'orignal' last time is basically the same as the laserdisc rips, which are the closest visually one can get but he kept the sound at 2-channel instead of updating it to 5.1 surround, as well as not doing any number of small fixes to enhance that experience.
That's also why all new TK's added in ANH are ROTJ, as that's his latest version of trooper.
As for the TV series I can't say. My understanding is that this is shelved permanently and they are more likely to just continue clone wars right up to ANH.