The ride itself is mostly fine. There's no real issues with the track or the trains. The issues are with the launch system, and there are two replacement options that can be done by various manufacturers. A LSM conversion could be done by Intamin, Zamperla, or Premier Rides, or S&S could replace the hydraulic system with a pneumatic system. S&S have already done a retrofit with Powderkeg at Silver Dollar City, and they have designed a faster launch on a shorter track with MaxxForce. So it could be done, if VRTP are willing to work with them again after GL. Both options are more simple, have fewer moving parts and less maintenance than a hydraulic launch system. A pneumatic launch is clearly the spiritual successor and the better ride experience option, but the LSM option is likely cheaper to install and maintain. A pneumatic launch gives the ride a clear point of difference to ST at Dreamworld, and could be considered an 'upgrade' with more punchy acceleration. It would, however, be very loud and two pneumatic launch rides in the same plaza might be overwhelming - the solution would be to move batwing to a different area of the park but this adds additional cost. An LSM conversion would therefore be the most likely option. Even if it cost $10M and they did a station upgrade at the same time, it would still cost less than the $30M+ they would need to spend on a brand new custom designed coaster to replace it in that space.