My guess is that the cover is going to change every home stand as the Cubs celebrate another decade. That's going to make a lot of different covers, far more than when it was just one per season. I'm half tempted to get one of each, since this is a special season.
Tempted, but not really....too much money. I may just go with a virtual collection of these and snag some pictures off of Ebay.
As it is, with this card my collection now has 62 cards...1949, 1953-1954, and 1956 - present.