Qatar Airways for May 2020 are down to operate Doha 6 weekly with no flight on Wednesdays and it goes daily from the last week of May. It was 5 weekly in 2019.
In September and October KLM will upgrade the 09.45 departure to an E190 and as well the Tuesday, Wednesday, Thursday and Friday (October only) 06.05 departures will be an E190 meaning on those days CWL will have 2 E190 and 1 E175 departures.
For winter the E190 will operate the 06.05 everyday except Sunday as there isn't one until the end of March.
Some good news for Cardiff.