Can a lawfully perfected interlocutory appeal be mooted prior to resolution

QUESTION(S) PRESENTED : 1) Can a lawfully perfected interlocutory appeal pursuant ta 28 U.S.C. §1292(a)(1) that has been fully briefed and pending | in the United States Court of Appeals be mooted prior to . resolution by issuance of the District Court's Final Judge: ment, or must such a judgement be witheld until the appeal ; has been resolved less the Due Process Clause of the Fifth a Amendment and, or the right to petition of the First Amend: : ment be thereby infringed? (2) Has the Supreme Court of the United States over time effect“boa ively nullified or else diminished the Contracts Clause to ~ the point that the Constitutional prohibition of Art. I, §10 that "No State shall...pass any...Law impairing the Obligationm of Contracts..." is irrelevant to the proper interpretation and enforcement of plea agreement cantracts? , , (3) Does the Due Process Clause of,the Fourteenth Amendment compel State prosecutors to perform, and courts to interpret and enforce, plea agreements pursuant to the laws in existence at formation? : : : .