Ok, seeing as how the difference is closer to 50/50 than anticipated, for those on the denying side, communicate, what would be more favourable for you? Bare in mind that the original date of the 29th is out of the question, so that can't be a suggestion.
Vote this post Agree if you want an even later date in January
Vote this post Friendly if you want it in February to Easter holiday (April 19th regions)
Vote this post Optimistic if you want it in Summer 2019