I agree, can't be ruled out, but I think it's unlikely. This is also based on the permit that was filed. The contractor on that permit would be the one doing that major work of removing the old and installing the new ride system if it was happening. The permit has no expiration so the work will likely take far less then a year to do. By contrast they are the same contractor on the Soundstage 1 project which doesn't expire for two years. If that project really is the new Toy Story Track it's hard to believe it would take them less time to gut and re-do Maelstrom, then it would take to install a copy of an existing ride system in a pretty much empty building.
Obviously none of this is certain, but it definitely skews my opinion towards no new ride system.
