What will happen to Magwitch if he's caught in England?

Magwitch is an escaped convict who meets Pip in a churchyard on the march and demands that Pip give him food and a file to break his chains. Petrified, Pip complies and Magwitch escapes. He is later recaptured and shipped off to Australia where he grows rich. He is forbidden by law to ever return to England. Unknown to Pip, however, Magwitch is the one who provides the money for Pip's "great expectations" out of gratitude for helping him escape. Later on in the story when Pip is grown up, Magwitch returns to England, curious to see how Pip is getting along and if his money has made Pip into a proper gentlemen. By returning to England, however, Magwitch puts himself in jeopardy. He says "It's death to come back" - because he has violated the law in coming back. In fact, he is captured after he has a fight with Compeyson and sentenced to death, but he is so badly injured in the fight that he dies before he can be put to death. Pip then learns that Magwitch is Estella's father. And the plot thickens.............