Looking at the best teams from the other conference (and I mean Bamboo Shoots firstly and then Dragonmasters), I'd say that they are strong favourites to win the promotion. So, you have two options:
1. Make sure you proceed to the finals (POCT today) to get the money from the games, and then be realistic about your chances of promotion, which are very very slim.
2. PON today and then try to steal G1. That is IF you win today. Your opponent has good game shape, he isn't that worse from you salarywise, he may change his PTB, you have an injury... You'll probably win today but is 1 point in ENTH worth the risk?
Anyway, I'd go with option #1. The thing is that I'll go with option #1 today. I'm playing in an exactly same situation today. Away, with a team I won with TIE vs Normal in regular season. I'm far better but just because I know my chances of promoting are very low in the finals, I'll POCT just to make sure I'll go to the next round, grab the money and who knows?