As stated, for the next 24 hours, all cities except Paris are paying out double mastery, so if you aren't done with Bangkok yet, now is the time to do it.
Note that these "double mastery" days usually proceed some type of new content. With Paris coming to an end on Monday and a double mastery day today, I think we can expect Episodes 6 and 7 of Bangkok within the next three weeks.
As far as "prepping" for Episodes 6 and 7 go, there are a few things you can do:
Save up 2 million or so $B. New content = new items to buy in Bangkok. Don't spend all your money on Yakuza Assassins! The more the better, you can always spend extra $B later on faction store items. You don't want a lack of cash to hold you up.
Stock up on Pirates, Drug Shipments. and Satellite Phones. Multiple episodes in Bangkok used Drug Shipments and Pirates. There is always a chance that we will need these again, so it can't hurt to stock up on them.
Episode 6 and 7 jobs are likely to cost even more energy then the Episode 5a and 5b jobs. As a result, weapons parts will be of short supply. After you save up a few million $B, get a lot of weapons parts. Odds are that you may run out of these while doing the high-cost Episodes 6 and 7 jobs.
Stock up on -energy cost boosts, particularly the Moscow Episode 6 Golden Chicken. This can help you speed through content but is definitely secondary to extra $B and extra pirates/drug shipments.
Another Saturday Bonus - Free Reward Points!
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