Hi rj,
Yes, any request for 'supersession' of a claim due to deteriorating conditions will result in a new form to filled out and possibly a f2f assessment again.
With a supersession, the onus is completely on the claimant to show 2 things. Firstly that the condition has worsened since the last decision. Secondly that the condition now scores enough points for an enhanced award. Of course, there is also the possibility that the condition has actually improved and the award will be reduced or removed.
Any decision will be appealable in the normal manner.
Nothing on this board constitutes legal advice - always consult a professional about specific problems