**Magento 1.9.0.1 with Recurring /Subscription module by anywebsol.**

We have a grouped product with three associated products within itself.
I is a monthly subscription (no issues).
II will be a fixed pay for first 3 months
III will be a fixed pay for first 6 months.
The Grouped product alone will be shown in the catalog. For II & III buyers/subscribers, after the initial period (of 3 or 6 months), **the subscription should automatically switchover to Monthly or Option I.** Is this possible? Can the 3-month and 6-month product be altered using a cron job to convert to montly subscription after the end date? Configurable product? or is there better way to do this with your extension.
Would appreciate early responses. Thanks in advance.

Regards
Sivarajan