Apparently OP didn't read my post when I replied to her earlier mention of Camp Mickey Minnie. Not only is CMM not there anymore, it is now included within Avatarland.
I don't know what "something" she could expect from Sumatra other than a couple of animal exhibits in the Asia section. That's rather an obscure corner of the world to identify for special attention. Sumatra is best known for their tigers, elephants, rhinos and orangutans. Only the last is not yet represented in the park.
By Southwest, I think she mena the American Southwest. I don't think that part of the world was ever selected as an area of interest for AK. If Old Lady wants a ride, or coaster with a SW feel, I would direct her to BTM RR at MK. It sounds like it's been a long time since Old Lady paid a visit to WDW.