Chris Coleman expects Wales to have a better squad in 12 months' time than the one that reached the semi-finals of Euro 2016.
Coleman has yet to nail down his Wales future with talks over a new deal set to resume after Tuesday's friendly with World Cup-bound Panama in Cardiff.
But Coleman is expected to agree a two-year contract and lead Wales into the Euro 2020 campaign after missing out on the 2018 World Cup finals.
Talented young trio Ben Woodburn, Ethan Ampadu and David Brooks - who all came on as second-half substitutes in Friday night's 2-0 defeat to France in Paris - are set to play a part in Euro 2020 and offer Wales fresh hope for the future.
Liverpool forward Woodburn became an instant hit in September when he scored a World Cup winner against Austria within five minutes of coming off the bench.
The Paris defeat was his fifth appearance as a substitute, while Chelsea teenager Ampadu and Sheffield United striker Brooks made encouraging debuts at the Stade de France.
Ampadu, in particular, caught the eye in midfield with his composure on the ball, though he is just at home in central defence.
All three youngsters are set to start against Panama at the Cardiff City Stadium when Coleman is expected to field an experimental line-up.