That’s completely your choice. If you are happy with 10 apps and unlimited speed, and are looking for saving some money (old silver plan is 849 if you recharge now, and it will cost 999 after sept 5th, but you get 1 app extra), you can recharge now. But if you need 11 apps, you will need to wait till they start selling the new plans. I think after 5th sept, all the old plans will be removed.