The FSA fears advisers and employee benefit consultants will switch group personal pensions (GPP) around the market to continue receiving commission.
The UK's combined defined contribution pension savings have rebounded by more than £103bn since this time last year, Aon Consulting says.
The Labour party's proposal to phase in employers' contributions to personal accounts until 2016 "undermines" the whole project, the Conservatives say.
A "huge range" of trade bodies and industry players are putting forward ideas on pensions policy to the Conservative Party ahead of the general election, Nigel Waterson says.
Logica UK has pulled out of the running for the personal accounts administration contract, the Personal Accounts Delivery Authority confirms.