Well that blows. I know it's not the most exciting section for most AK goers, but it was nice to have an educational section, and the train ride was fun seeing back stage stuff and feeling like you were getting out of the crush of the main park for a bit. And it was always the best, most air-conditioned spot in all of AK!
If they end up repurposing and reusing the section for something, I guess that's OK. If it ends up just being a dead space that goes unused and slowly falls apart, that would be a big disappointment.