Is there any good place to view ROL besides the arena viewing area? Flame Tree open until park closing??

Can you normally just walk in last minute and get a seat?

In 15 days when we go park closes early. I want to spend time in Pandora when dark, see the Tree of Life projection show and we were eating at a Tiffins. Thinking of cancelling Tiffins dining package for ROL. I know it is good but Flame Tree and counter service in Pandora would work too.