Love the detailed concept and think it has a lot of promise overall. We've been wanting some kind of land specific promo card for awhile.
The challenge comes in from Land being underdeveloped so while these cards are awesome, until land 1.7 or beyond comes out it probably wouldn't make sense to push something like this in the near term.
If we focus on timing, let's be optimistic and assume they get new resources and utility for research out in January of 2025. If we assume no mini-set and therefore a Q2 launch of the next core set - before Chaos rotates out of modern - that gives us a window of 3-5 months early next year where this could make a lot of sense.
The only wrench in the plan? If the bull run begins or the team starts any kind of marketing that brings new players in to scoop up these cards and packs. But hey - that's a good problem right?