Crni Vuk said:
Of course I do have doubts as well and I do not really believe this would happen. Since why I think it would be the "death" of the console if the players might have to change the hardware in a similar fashion as you do with the PC
Not so sure. While console add-ons have traditionally not done too well in comparison to base sales, something like the N64 Expansion Pack or even the Sega 32x shows that it's possible to expand the hardware functionality of a console and do so in a relatively easy way. Whether most gamers will jump on board is a bigger question (I doubt the current console makers would bother with making such add-ons, or if it's even possible with the current gen), but I don't think the barrier of entry is too high. The biggest obstacle for getting into PC gaming, hardware-wise, is that there's a lot of learning required - you can't just stick X add-on into Y slot and be done with it.