I love your Fairy tail x age of extinction story, it was the best story I ever read, even though some chapters are short, I must say that this story including the other Transformer x fairy tail story are awesome as heck, me and my bro are looking forward to see a third story after this one. And you know I realized something I know that scorn (the Spinosaurus) and Strafe (the two headed Pteranodon) didn't appear in the last knight, so what do you think if those two would ever want to join them to fairy tail world by
1. Ask Haru if they would be ok to join them.
Or
2. Be sneaky and go to their world before the portal closes.
if you ever want to use this idea to the story that is, if not then it's ok I respect that.