Elizabeth would be ahead of Jane.ah okay. So a more accurate line of succession could be:
1. Children of Edward VI (none as of 1558)
2. Children of Jane Grey (Frances then Jane jr)
3. Children of Elizabeth (Edward, then Anne, then Elizabeth jr.)
Only if Edward touch his father’s succession. As here that one will exclude Mary and put Elizabeth behind him, then Frances Brandon and her children and her niece I dioubt who Edward would feels that necessityElizabeth would be ahead of Jane, but Elizabeth and her daughters likely would not be included if she has a son.