A ride, discontinued by it's manufacturer, possibly flawed by design. Constantly having downtime, constantly being extremely expensive to replace (rumours are merlin forced the decision to repair at any cost).
That, mixed with the fact the ride has low popularity, has low throughputs and high staffing costs makes me think it'll go sooner rather than later. The second they have the right ride, for that location, it'll be gone. If not sooner due to the ride trying to kill itself every ride cycle it performs.
Eventually the park will give up on it. It's not really even worth spending the time, money and effort on.