So that is a survey result. Be curious to see how it turns out. Interesting that in their Thinkpad Line Lenovo still offers a Win7 downgrade.
That was expected , which serious admin would stay on Win7 when Win10 offers tons of security improvements. the only things that may obstruct the progression is a stingy CEO or old hardwares.
Volume licensing always has come with extensive downgrade rights in case a new Windows version does not work: http://download.microsoft.com/download/6/8/9/68964284-864d-4a6d-aed9-f2c1f8f23e14/Downgrade_Rights.pdf Education & Enterprise are fully entitled to downgrade to all Windows versions going back to Win 95/98/NT.
In the case of the current Lenovo offering, they will install Win 7 Pro on a new machine and it's shipped that way.
Research also states that enterprises will start migration to Win 10. In enterprises whole process can take few years to complete. Since Win 7 support ends in 2020, now is a good time to start thinking about migration. SMBs will probably stay on Win 7 till 2020 and some even after support ends...
They would be upgrading to LTSB Enterprise. Not available on Pro, which offers only CBB, which isn't quite stable enough for mission-critical enterprise deployments.
A lot of businesses are still running Windows XP. Microsoft still provides updates to government agencies even though EOL occurred only a few years ago.
IDK if it will be LTSB Enterprise or Enterprise edition for most enterprises. Probably both depending on what specific system will be used for.