CAA and JAA are going to be a moot point before long. Within the next few years EASA will assume full regulatory authority for Flight Crew Licensing. EASA rules are EU Regulations which, EASA being a higher EU executive authority, will supersede any national regulations.
I wouldn't worry too much about whether the CAA will initiate a PPL FI without CPL exams - it is what EASA do that will make the difference and whether the CAA can convince other member states that such a rating would be productive).
In any case, the proposal as I understand it is that the PPL FI will be for primary PPL instruction only, daytime VFR only, no night, no IF, and limited to aircraft with fixed u/c and prop with a given maximum weight but I would welcome some clarification of this.