Jason Holder has two first-class wickets and he's close to being in the test team, and some people think he'll come in and do well right away
It's Tim Southee all over again barring the domestic success. Southee took a bucket load of wickets against a strong Indian under 19 team during their tour to New Zealand, he was then named player of the tournament at the 2008 under 19 world cup, he also took a bucket load of domestic wickets that season and made the test team a month later. Barring his game against England he's been inconsistant and in and out of the team for two years.
Young bowlers take a long time to develop, if I had to guess Holder wouldn't be test class for at least five years, bowlers just take so long to develop at the next level.