The keeper recently picked up two honors at the Championship club's end-of-term awards.
He has impressed hugely in the second division and will be hoping to fight for a Brighton start next season.
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Rushworth said: I have developed massively.
I think the change from the beginning of the season to now has been night and day really, it's completely different.
There is so much I have learned.
That's one of the most exciting things I am going to take away from this loan, as well as working with the gaffer and with Marge every day.
The lads have been great and it has just been such a positive experience for me, one that I am going to cherish.
I have loved it. Since the new gaffer came in, it is so similar to how it is at Brighton and I am just feeding off that."