The only other place I'd suggest would be an okay place to move the Blade would be to Katanga Canyon and give it an Explorer's theme. It could make use of new land on the car park above Katanga Canyon. But there's not really much point as they'd be moving the ride only a couple of areas up into an area that's already complete, so it's best if it stays where it is. There's not really much they can replace it with at the moment... unless they could squeeze either a Mondial Revolution, Fabbri Top Swing, Zamperla Discovery or Midi Discovery?
(Zamperla Midi Discovery)
I know Drayton already has one down the road (albeit bigger than the one above) but that's the only other flat ride I can think of that might fit there at the moment.
So yeah, keep the Blade as it is for now.