I saw that there might be a bit of an overhaul to orders/trades which might address this. When I enter in GTC mode, Zorro queries the fill status through BrokerTrade, but the same does not happen with exitLong/exitShort. They support GTC mode and OrderLimit but Zorro treats them always as immediately filled and as far as I can tell, I can't easily check per script the status of these exits. Again, I know this might be addressed soon but just wanted to ask if I'm missing something maybe.

Yes. GTC exit orders are 'fire and forget', they will not trigger further BrokerTrade calls. We will implement a way to get the status of exit orders when reviewing the order system.