Welcome to the forum !
Yes, new Verna is on the cards and going by the reports, it should be launched within Q1 of 2015.
So if you can wait a little bit then I will advise you to do so and see if it matches your expectation.
Apart from cosmetic changes, 2015 Verna will get better sorted ride and handling. Though i feel back seat comfort will still be a notch below City.
If you are looking for a diesel only car then apart from Verna I will suggest you also look at Ciaz. Though from looks, engine power and overall quality wise it's a notch below Verna but it's priced very well.