I think it would depend on who's producing it, and who's on the creative team. If it's produced by people who have been attached to the project for a long time, and have just been waiting for the opportunity, then it wouldn't really be accurate to call it a revival; because in that case, it's just that they had to wait a long time for the show to transfer (not unlike The Visit, which was considered a new musical despite having kicked around for 15+ years). Similarly, if it's the same people on creative team, that makes it easier to call it a transfer, rather than a revival (though there are exceptions to this on both sides: revivals with the same creative team, and "new" shows that replace the creatvie team).
But if a totally unaffiliated producer just woke up one day and said "it's been 10 years, and I'm gonna buy the rights to bring back Here Lies Love, this time on Broadway!" then it's more like a revival, especially if it's a brand new production, with a different creative team.
It's also worth considering that, while Here Lies Love is well-regarded, it hasn't established a firm place in the widespread theatrical canon, in a way that shows are theoretically supposed to with the "classics" rule. Again, there are some exceptions to this on both sides, but with a show that's right on the fence, these factors will mean more.
And when in doubt, you kind of just have look at the context, and trust your gut as to whether it feels like a revival, or whether it feels like a show that took a long time to transfer.
For my money, I expect it would be considered a new musical if it came to Broadway.
Updated On: 9/24/22 at 02:25 PM