Bear in mind by 1992 the original opening contracts were due for renewal. As stipulated, renewal would also include the sponsor paying for upgrades.
Spaceship Earth:
AT&T renewed their sponsorship and forked out for the upgrades as per the contract. A demonstration of what could have happened with Horizons.
Energy:
Exxon wanted an update with more current (1996) information. They had two choices - futuristic or game show. Ellen was newly contracted to ABC and the synergy (not to mention promotion of a new ABC show) was persuasive. I've posted some art from the proposed future version in the past. A missed opportunity.
Horizons:
Horizons needed updating. Everything from control and ride systems to scene decor and animatronics. Eisner was keen for a SSE ‘94 style update of Horizons. GE declined to pay what was required. So they pulled out on their ten year anniversary and Disney then decided they wouldn't fund it either. Proposed space overlays came and went with no sponsor, seasonal operation saved operating costs until an answer could be found, enter Compaq who wanted a thrill ride and offered to pay to build one. Disney said "sure, but it needs to go here and you also need to pay to remove the existing building". In a nutshell.
Motion:
GM wanted something hip and hi tech to attract the untapped younger car market. WOM was expensive to maintain so they also wanted something cheaper to run. Test Track was offered to them in 1993. If they got either of their wishes is debatable.
Imagination:
Again, Kodak wanted something modern but cheaper. JII was also expensive to maintain and issues with the rotating introduction scene and ride control system had never been fully resolved. The solution was rip out the troublesome ride section and bring all the guest areas down to ground level. This of course meant shortening the ride too. Two birds with one stone. Eisner was furious after his first ride of Journey into Your Imagination. Kodak. Where are you now.
The Land:
Kraft declined to renew sponsorship and Nestle moved in, part funding the pavilion renovation and swapping Kitchen Kabaret for the hip and trendy Food Rocks. An demonstration of the risk of using pop culture.