If anything the construction of a new ride may have been planned to start once toxicator was complete. With this in mind and the cold weather we probably wouldn't have seen anything happening unless something has happened in the last couple of weeks. As toxicator is now visible from the park the drones do seem to have stopped flying over.
I'm not wanting to be too optimistic but a mid year launch wouldn't be too difficult especially in x-sector. If the food stalls remain as seen in the Google earth image then that would be an indication that nothing is happening. I presume the dots are tables but I'm not sure what's at the bottom as I didn't venture this far into x-sector last year.
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To add to that, towers will want to make as big a thing out of toxicator as possible, but there is no harm in pushing another new ride towards the summer holidays once toxicator is old news.
I'm not wanting to be too optimistic but a mid year launch wouldn't be too difficult especially in x-sector. If the food stalls remain as seen in the Google earth image then that would be an indication that nothing is happening. I presume the dots are tables but I'm not sure what's at the bottom as I didn't venture this far into x-sector last year.

To add to that, towers will want to make as big a thing out of toxicator as possible, but there is no harm in pushing another new ride towards the summer holidays once toxicator is old news.