It's high time to release it on digital platforms. Many people abroad and in the UK want to watch it. They would like to rent or buy on Amazon Prime for so long. What is the point of being unsure about it as there are thousands who still haven't seen it with their families. Not everything should be about milking the public. Release it as a buy/rent to watch on Amazon Videos, Google Movie, and iTunes Movies, you will be doing a good service and will see the benefits during this time.
If you're worried about it being pirated, then you release it after another year it will still get pirated. But if every company was worried about it being pirated and don't release it online for that reason then, in the long run, you're going to lose more than gaining more.