“Even as a player, she was always coaching and I was always trying to learn off her and she’s even more that way as a coach – always coaching, always trying to give those extra details.
“I think it says a lot about her that she’s wanting to stay involved and I think we’re all really grateful as a team that she is involved.”
Fishlock has been working with her now former team-mates this week and will travel for what is a testing opening fixture in Group B1.
The Czech Republic have never qualified for a women’s major tournament, but are ranked 31st in the world by Fifa, one place higher than Wales.
Fishlock will leave the Wales squad after Tuesday’s game in order to rejoin Seattle Reign’s preparations for the new National Women’s Soccer League (NWSL) season.
Wilkinson’s players, meanwhile, will return home for a second qualifier against Montenegro in Llanelli on Saturday, 7 March.