Complex sentence: Originally, the Region 2 releases were ahead of the US, so extras were hard to produce, however as new editions have been released since the US extras were produced, it would appear Warner Bros. are choosing to release barebone sets.
Split into simpler sentences: Originally, the Region 2 releases were ahead of the US, so extras were hard to produce. However as new editions have been released since the US extras were produced, it would appear Warner Bros. are choosing to release barebone sets.