Amazon in Canada have a number of new listings showing up for a number of Marvel Legend 80th anniversary sets.
This concurs with a number of rumours and leaks circulating of Hasbro celebrating the 80th anniversary of Marvel with a batch of figures similar to the 10 years of the MCU releases.
There are six sets listed on Amazon, sets 3, 5, 6, 8 and 10. We then have a named set of Captain America and Peggy Carter which could be MCU or comic based. Of course numbering sets up to 10 indicates there are another 4 not listed.
The 39.99 sets (sets 6 and 8) seem to be single figures with the dimensions in the listing matching a single Legends release. The 59.99 sets are obviously two packs when you consider their dimensions are the same as the 10 year MCU 2-pack and of course the Cap and Peggy listing.
If these are already being listed then we'd assume a full announcement at Toy Fair and shipping to stores in Spring into Summer, perhaps staggered which is why the other 4 sets are missing.