Ability to set different price for plan renewals
Currently whmcs only allows you to set one price for a product. Having the ability to offer a 'discounted' initial price and then setting a different price for the renewal would be great. This is generally standard practice in the industry where you can pay $3.95/month on a 3 year plan and then after the initial term the price is $6.95/month for 3 years as an example.
I know you can use coupons to offer discounts on the initial order however the price is displayed in various different areas of the client area as well.