For Act 5, you could use question number 4 as the answer to question number 2.
Regarding the others, Malcolm says all of his his loyal thanes and kinsmen will be named earls of Scotland. He also says he will recall everyone who fled into exile out of fear that Macbeth would have them killed.
Macbeth says that "honour, love, obedience, and troops of friends" should accompany old age. Instead he will have "curses" from his many enemies.
I'd say the most sympathetic character in Act 4 is Macduff, who experiences the murder of his entire family.