I've decided not to post another free version, for a couple reasons.
The first reason is that I do not want to be a target for people like Brad Geng who see an ad-free app as an insurmountable competition for their ad revenues, causing them to take drastic measures to removed their competition, like the bogus DMCA claim. I'm taking note of the fact that N64 4 Droid has remained unscathed through this whole mess, by simply publishing the app and not worrying about anyone else.
The second reason I'm not posting a free version to the Play Store is because if Brad does decide to submit another bogus DMCA claim (which seems highly likely to me from what I know about him), I'd rather have only one more app "in violation of Google policy" than two more of them. The process appears to be completely automated, so there is no way to show a live person at Google with more common sense than a computer that I've not broken any rules, and that the DMCA complaint is not even legal in the first place. I don't know how many strikes Google gives folks before banning their account (I already have 3), and I've heard that once you are banned, it is almost impossible to stay off Google's radar (they will keep banning all future accounts, not just the original one). Since I plan to make a living off selling apps in the future, I'd rather not tempt fate any more than I already am by posting this app once again.
On that note, if the app is pulled from Google Play again, I will not be re-listing it or any other emulator in the future. In that case, I'll switch to Slideme or another less popular alternative, and just use Google Play for my future commercial apps. In the unlikely event that Google does somehow come to their senses and decides to unsuspend my original 3 apps, then I'll update the original free version and remove the other two that have now been merged into the current app.