Thread updated with new info. JetBlue's website now displays aircraft names with tail numbers, including tails for planes that have not flown in revenue service yet.

EDIT: I got news from someone working at JetBlue. Because they're able to park the planes for so long during the downturn in business, the LiveTV and wifi are installed in-house at JFK. It takes 3-4 weeks, so the "*awaiting LTV/FlyFi installation" tracking can be inaccurate until someone actually flies on one of them and can report back on whether it has it installed.

EDIT 2: However, it looks like N2060J and N2105J (the A321neo with New Mint) are both in VQQ for IFE installation so I'm not sure if it will be done concurrently in-house and at VQQ, or if it was just something they were doing during the past year.