It would actually be an incredibly huge boon for the EU to get Ukraine as a member. It would benefit the EU in unique ways while the challenges Ukraine faces are hardly unique within the EU.
It would benefit both Germany's agenda of making the EU's center move a bit east, and France's desire to gain more geopolitical independence. Ukrainian gas would decrease reliance on US and Russian gas even in the short term as pipelines are by and large built already.
There's the catch though, I think the US' interest in a separate UA from the EU, with both depending on the US for either rebuilding or gas and other raw materials. While we are fighting the war against Russia, we will probably be fighting the peace against the US, and I hope Ukraine will prevail together with the EU.