Officially Audi will not be launching the sixth generation of its most selling salon, the A4 till 2020, however what Audi has done is, they have given mild face-lift to the current model.
A good thing we would say, as why fix, when ain’t broken?

So are the changes significant or are the changes only aesthetic?

To answer the questions, no the changes aren’t significant, however though minuscule, the aesthetics that are revamped do make a case for Audi getting a refreshed new look.

Here are few of the cosmetic changes that the 2019 A4 facelift will get:
Bumpers:

The front and rear bumpers now get a new refreshed look and feel to it

New fresh colour:

Audi has brought second wind to the old generation A4 with a refreshed new Turbo Blue paint job on the Avant version

Alloy wheels:

The 19-inch alloys, are stunningly revamped and make up the final thread in the facelift of the A4

Audi also has given its customers to opt for an additional package called the S-line or the S-line competition. Here is a quick table giving the differences in both the packages.

The Audi A4 is currently available in 2 different engine options in India; Audi A4 30 TFSI (petrol) and Audi A4 35 TDI (diesel) starting from Rs 41.47 lakh to Rs 46.94 lakh (ex-showroom pan India). Though officially there is no confirmation from Audi India whether it intends to update their A4 line up in India. But with the all new BMW 3 Series right around the corner, and Mercedes taking the first mover advantage by launching their updated C Class, this should be the perfect time for Audi to bring the updates to India.