So ran into a ride operator from Busch Gardens at another park and I asked him about what happened with Wild Surge. He said the ride had a fire (which I normally would have been skeptical of since there’s been no news of that), but then he showed me a picture on his phone! He said it happened around December and it appeared pretty heavily damaged, thus the reason why a temporary refurbishment turned into a closure.
The damage appeared to be in the upper part of the tower structure. Looked online and the only mention is something on Reddit, couldn’t even find a fire department report. Surprised we haven’t seen anything official from the park yet, but if this is true maybe they’ll at least get an insurance check out of it to use on something else!