What I've read is that these increased frequencies are typical summer routes and last just for 1 month (August)
Sounds weird to me and I think that would be new for FR to base a additional a/c for only 1 month.
NRN - AHO from 3/7 to 4/7
NRN - ALC from 7/7 to 9/7
NRN - AOI from 2/7 to 3/7
NRN - GRO from 7/7 to 9/7
NRN - REU from 3/7 to 4/7
NRN - BLQ from 4/7 to 5/7
NRN - WRO from 2/7 to 3/7
NRN - CAG from 3/7 to 4/7
NRN - BGY from 5/7 to 6/7
NRN - AGP from 4/7 to 5/7
NRN - PMI from 7/7 to 8/7
NRN - PSA from 3/7 to 5/7
NRN - SVQ from 3/7 to 4/7
NRN - TFS from 3/7 to 4/7
NRN - TPS from 3/7 to 4/7
NRN - VLC from 3/7 to 4/7
Summer hoidays in Germany (North Rhine-Westphalia): July 2nd - August 14th
Netherlands (region middle and south): July 11th - September 6th
Maybe after the summer new routes to come?