ESA forms received early

I've just received my ESA 50 forms several months early which has rather alarmed me as I thought the DWP was running behind schedule.
The forms are dated 02/17 but there appears to be a brand new PDF form dated 04/17 so is it ok to use the new PDF form?

Has anything changed legally with the ESA assessment since my last assessment in late 2015?

Also, I am concerned about the section on Face to Face assessments. I am mostly housebound and will really struggle to travel far and I don't want to give the impression that I go out regularly but I know I'm unlikely to get a home visit. If I fill in this section and tell them what my needs would be if I have to travel to an assessment centre, will I totally jeopardise any chance of getting a home visit? It does not seem to be possible to request a home visit at this stage.

Thank you.

Is it true that if Maximus call you to an assessment centre, they can call you to anywhere within a 90 minute journey of where you live? I'm sure someone told me that was the case for PIP but it would be helpful to know if that's the case for ESA too.