Yes, he would also want you to pray for his family during their time of grief and to also pray for America. He would also want you to pray that all peoples find Jesus Christ. He would want you to be in constant prayer, continually speaking with God.For all you know, he wants people to pray the intercession of the Blessed Virgin for him.
After all, right now, he knows.
I am sure it is a glorious day in Heaven as one of God's most faithful servants has come Home.
The most important thing right now is to carry on the values that Mr. Falwell preached about and to continue to defend what is right and just.