Exit Stage Left – but why ?
FACT: There are a number of companies who provide application migration services.
FACT: Companies will migrate your application(s) away from Gen to COBOL/C etc if you want.
WHY ?
I have never understood this! Since becoming exposed to Gen in the mid-1990′s I have always seen the benefit of modelling and code generation and deployment in the same toolset.
Quite why any organisation would want to return to hand-crafting code for enterprise-scale applications is beyond me.
As I see it, any benefits that once might have been gained by manual coding in a high level language will be washed away by a Model Based Development approach like Gen, with its productivity and platform independence.

I really would like to understand the thought processes that go into a decision to remove Gen from an organisation’s estate – perhaps some readers of this can enlighten me by posting comments!
