As much as I love my Wii I really don't think it will. My main argument for coming to this conclusion is that there are two major factors that gives the PS2 a long life span in terms of console sales that the Wii lacks.
Firstly, as I think someone mentioned before in this thread, the ps2 was not the most well built of consoles and people will have to buy new ones to replaces the broken ones far more than they will with the Wii. I know I have had to buy two new ones myself at least.
Secondly, the Wii is very small. A lot of people were really inclined to buy one of the slimmer ps2's because there was a significant difference between the large and heavy and bulky ps2's and the new slim one. Because the Wii is already small and light I cannot see an even smaller and lighter one having the same effect or even how much smaller a Wii can realistically get.
TBH I would consider it much more successful if it undersold the PS2 because of these reasons.
