It depends. Pokemon Analyses are mostly done - the only thing in that aspect we're looking for are NU Pokemon Analyses. At the moment we have only Nowen working on that.
Strategy Analyses are welcome, provided they actually give new information and tactical help. Things like the following aren't needed at all.
Exploder Guide
The following Pokemon learn Explosion: Mew, Mewtwo, Electrode, Exeggutor, etc
When to Explode: Well when there is no Ghost/Steel/Rock on duh!!!
Good support: Pursuiters, Dugtrio, Magneton
Counters: Ghost, Steel, Rock, Damp, Substitute, Protect
It's mostly common sense, we won't need that. A good idea to check what we need is the Analysis Suggestion Topic and the Edit an Analysis Topic.