[Milhouse]

LibreELEC for RPi2/3/3+ will still be ARMv7 based, yes, as it is today. We have no plans for ARMv8 support at this time, as there's no obvious compelling benefit.

What about future proofing? This would make the transission if nessasary much quicker and smoother

"at this time" - once it becomes necessary or there's a compelling reason, and there is official ARMv8 support from the Raspberry Pi Foundation, we'll begin work on ARMv8.

At the moment the ARMv8 RPi support is still a work in progress and incomplete (ARMv7 is the recommended/supported arch), the ARMv8 performance benefit is not significant (from past testing, 10-15% or less compared with ARMv7), there's no ARMv8 64-bit Widevine support (no Netflix/Amazon support with ARMv8, unless we ship a 64-bit kernel with 32-bit userland, defeating the purpose of switching to ARMv8), and it would mean another build to support in addition to RPi2/ARMv7 for no significant gain.

ARMv8 support will happen, when it makes sense...