Delivery time for 1.3L is 5-6 months whereas for Aspire 1.5L MT it was around 1-2 months.
Fuel economy of 1.3 will be slightly better than 1.5 but 1.5 is more powerful and a lot more fun to drive.
As for resale,a major factor which made 1.3 more desirable was less annual token tax but since 1.3 is now stated as 1339cc so it is in the same category as of 1.5L so token tax and registration is now same. So I assume 1.3's edge is no longer there and you should be able to resale 1.5 at a good price too