Complex sentence: Following recent success Ireland and Afghanistan were promoted into the ICC ODI Championship and have also since been promoted to full members of the ICC becoming the newest Test cricketing nations but will still need to qualify for the World Cup via the current process.
Split into simpler sentences: Following recent success, Ireland and Afghanistan were promoted into the ICC ODI Championship and have also since been promoted to full members of the ICC, becoming the newest Test cricketing nations. However, they will still need to qualify for the World Cup via the current process.