ESA reassessment

I just read a change wil occur on ESA support group at the end of this year or next year. The article says they will stop doing unnessesury reassessment for people in support group and at the moment they are working on the system.
I might be wrong, but they might be inviting support group people  with especially mental condition to,f2f to try to move them to WRG before the new rule starts. Or am I too paranoid? 

The article I read about change is in House of Commons library No.07820 19/June207

Thank you for the comments, every one. I am getting very nervous about f2f after the traumatic experience of PIP f2f assessment. (We are waiting for tribunal hearing for PIP). 
Yes, I heard there is a massive delay for ESA reassessment, and it makes me more suspicious and nervous as my husband got invited to f2f so soon. Also, it was another surprise that the appointment letter for f2f arrived  very fast, only 10 days after we sent ESA50 from. 
I am now reading " Work Capability Assessor's handbook" on line. It says they call people for reassessment when there is expectations of improvement of condition and they will request f2f if there is not enough medical evidence to prove to convince the person is not capable to work.
There is a comment of the assessor in the last year's assessment report "evedences suggests review in medium  term". Maybe they thought his condition might get improve after a while,
We submitted a lot of evidences include GP and his consultant's letters which says the treatment he recently had didn't improve his condition much and he still needs help for almost all the daily activities.
Unfortunately the letters were originally written for  PIP MR dated this May, because we couldn't have get new letters in time for ESA from GP or consultant as they are super busy and difficult to get hold of.
We thought this letter could be used as an evidence, because the information is not old. 
We submitted these GP's letter, his insomnia clinic doctor's letter,  medical report from his psychiatrists (from last year), medical report from pain clinic (treatment still on going), details of trigger of his PTSD. He also have memory and concentration problem which are mentioned in GP's letter and waiting for memory test by specialist (there is no written document for this yet.).
We thought we submitted enough evidences and we cannot think any more information to show. 
Sorry to going on like this but I will appreciate any advice or help.

Thank you, Will. I read the house of Commons paper again. They haven't made clear yet who are exempt from reassessment in the paper. They say not all the people in support group are exempt from reassessment. So my husband might still need to be reassessed after this change happens... There is a comment in his consultant's letter which says the treatment didn't show much improvement and he still needs lot of care for daily activities. Maybe this is the only thing I can use to complain DWP for unnecessary reassessment at the moment. Do you think it is still worth to write MP?

Thank you, Mary and Will. I sent a email to our MP anyway. His f2f is on 14th of Aug, so we might not hear from MP before the assessment though...  But there is nothing to lose and I hope it's worth it. Fingers crossed.