I think it's a good idea. It gives a definite conclusion to the set by completely satisfying players' market demand. It also allows for other expansions to be timed and launched predictably, largely when the game becomes stale.

Besides, this period until March will provide enough time for the current player base to acquire enough packs and cards to be ready for the game's next chapter.

It might boost packs in the secondary market, and it might boost the value of DEC closer to the intended value while, at the same time, reducing the overall inflation of assets.

You have my vote. 👍