Do I need to by 2 different lightburn packages for my fiber laser and my Xtool laser and are they going to bring out anything that will run with Ezcrash3 ?
One License supporting both.
The Galvo key also supports GCode for your XTool system. LightBurn currently does not provide support for the EZCad3 compatible boards. We want too, just not there yet. 
Any idea of when you might get to Ezcad3 ? I would hate to go backwards just to turn around and spend the money to go back up.
No. We would like to support those systems, but do not have anything further to offer at this time.