Hi Fiona
Your friend has no need to worry. As they are on Conts Based ESA and receiving no other Benefits apart from PIP, they will not get a UC Managed Migration Notice and they will not be moved to New Style ESA. Also they will not be asked to attend the Jobcentre to agree a Claimant Commitment. The only way you can get New Style ESA is by agreeing to a Claimant Commitment.
There have been various rumours about New Style ESA recently so I have looked at it in more detail.
The legislation is below and there is no provision for forced movement of old Contributions Based ESA recipients to New Style ESA if they don't get a Legacy Benefit as well.
Statutory Instruments 2019 No. 1152 Social Security
The Universal Credit (Managed Migration Pilot and Miscellaneous Amendments) Regulations 2019
www.legislation.gov.uk/uksi/2019/1152/made David
