You're 'temp to hire', so yes.
Once you have something permanent, you can then weight the pros/cons of keeping seniority vs getting a few bucks more in exchange, especially in your field.
Right now you're on a limited schedule and also a temp. If they need to cut somewhere, you're high up on that list (Regardless of what level of middle-management you report to says about it).
"The monster, instantly recognized by all who knew it in life, seems at first to breathe and have a pulse, but, alas, it does not."