Some decisions are already headed to appeal , and it seems sure that eventually at least a few will make it all the way up the tree to the European Court of Justice.

一些判决已经要上诉了，而且似乎至少有少数人最终会向欧洲法院提起上诉。

make it all the way up the tree 

一路爬上树 比喻“一路畅通无阻前进”

make it all the way up the tree to the European Court of Justice

这个用法由下面的惯用法演变来的：

at the top of the tree

in the highest position or rank in a profession or career

欧洲法院是欧洲最高法院。处于at the top of the tree. 一级一级上诉，直到欧洲最高法院，就如同上树上到最高处。