On hearing this rumour about the E195 on the GLA-CWL-CDG route last week i investigated as part of my role in the Wales Air Network.
I noticed that the E195 was due to operate on a Sunday only during the height of the summer season.
I haven't checked recently so this may have changed.
However if the figures are improving then it may be possible that may see the return of the morning CWL-CDG rotation in the near future.
This would also offer more connections under the Air France agreement