Q. Should i wait for 3rd gen i20 or buy the current model in September 2019?

The 3rd generation Hyundai Elite i20 is expected to debut at the 2020 Auto Expo. It is likely to feature significant updates inside-out. It will be more feature-rich and could pack a sunroof too. You can expect it to come with an eSIM for internet connectivity & more. It is likely to equipped with the Venue’s 1.0-litre, 3-cylinder turbo-petrol engine. The next-gen Elite i20 is expected to be more spacious than the outgoing model. The current car is quite cramped, especially when compared to rivals like the Honda Jazz and Maruti Suzuki Baleno. Still, if you are willing to purchase the car soon, so you can go for the current one, else wait for the upcoming version.

No you should buy 2019 model because you don't think they will make any difference in engine so you will get a great discount if you buy 2019 model