A good example: Treasure Island from Roberl Luis Stevenson

We have the "work" here:
Treasure Island
https://www.wikidata.org/wiki/Q185118
in the item, we have a property called "edition", which links to 2 different items:
* Treasure Island (1883, Cassell & Company) https://www.wikidata.org/wiki/Q14944007
* Treasure Island (1911, Charles Scribner's Sons) https://www.wikidata.org/wiki/Q14944010

I would say that this is a good model: we have the item for the first edition too, for books that important. 

For the majority of books (those who don't have important translations or different editions), "work" and "edition" level could be merged in the same, unique item. 

Of course, wiki-style: if you want a different item, you just create it. The basic level is a single item.  

What do you say? 
Do we agree on this?

Aubrey