Should Tracheotomy Be Done After Recovery From Infections In Parkinsons Patient?

Question: My father has been diagnosed with Parkinsons since 2008. In the last 3 months his condition has worsened signigicantly. As of August he could walk perfectly and could speak clearly. Today he is intensive care unit at hospital suffering from asperation phneumonia. He cant talk and cant move and he even appears to be in a comatose state at times. The doctors decided to intubate him yesterday because his oxygen levels became very low. They stuck a tube of oxygen directly in his mouth. This has become sadening due to the rapid decline in his health. He is on antibiotics to fight the phneumonia and a urinary tract infection. Also he is getting a MRI and a spinal Tap today. (My question is could this MRI and Spinal Tap be benenefical to the neurologists or doctors? Or at this stage should it not matter.) They believe he may have had a seizure this monday however a EEG came back negative. he has never had seizures before. Also now that my father is being intubated will he continue to need assistance breathing they say they have a fear he will not be able to protect the airway. The issue i am having is that my father has had so many infections lately and had not been fed in 5 days. he is extremely weak so i am wondering if i should allow his body more time to recover before we make decisions such as a tracheotomy.