As I was building up my collection, I was surprised that Secret Messages was remastered with bonus tracks, yet the far-superior (in my opinion, and I like SM) Time hadn't been.
FYI - Time has been remastered and reissued with bonus tracks. Here is a link to the album on Amazon:
http://www.amazon.com/gp/product/B00005KHEV/qid=1148683635/sr=1-19/ref=sr_1_19/102-8159650-5706517?s=music&v=glance&n=5174Albums remastered, available via import or Amazon:
Electric Light Orchestra (No Answer in the US)
ELO II (import version with lots of extra tracks)
Albums remastered by Jeff Lynne, with bonus tracks:
Eldorado
Discovery
Time
Secret Messages
Also, the box set (Flashback) features most of their famous songs, all remastered.
As for their early albums (No Answer, II, On The Third Day and Face The Music), Lynne has remastered those and they are going to come out soon.