I never got the original Ultra sized Megatron and Primal. I got the TM's and TMII of Megs, and OpOp.
However, in my collection I had the BWII 2 pack of Galvatron and LioConvoy, as well as the 2-pack of Big Convoy and Magmatron. It was always my intention to get the Takara 2 pack of "Convoy" and Megatron from BW, to complete the trifecta, but sadly when I sold my entire original collection in 2007, that idea was scrapped.
Much like Transformers Prime, BW was a show that I loved, and I did have a few toys, but that's basically back when I was not so focused on what I wanted to collect. My 2nd favorite character in the entire series (Tigatron), is getting a Kingdom Voyager later this year, but even that I doubt I'll get, and while these retro toys look neat, the nostalgia is more for the show, which I have on DVD and can watch whenever I please. Even if they reissued Magnaboss and Tripredacus (which why would they, they were never in the show, unless you count the Tripredacus council which was never shown in that toy form on screen). I doubt I would get them.
But I hope they do sell well, it will be interesting to see if any more reissues to come, and what they will be.
*On a side note/OT, I did feel some genuine joy this past week in the toy aisle. I saw a MOTU retro style Roboto at Target, as he was one of my favorite of the whole line growing up. For a fraction of a second, I really wanted to get it, the I thought, I'd have to get them all, but I have no room to start another collection.