You shouldn't RP that the world has change. The world was like that. ALWAYS. Rping that a river just popped in front of you is wrong. You mean that right now you are excluding Kadaikos from your RP just because it isn't "implemented"? Or you say that there is only one level to Yliakum? That is wrong.
Well, yes, but still is a bit uncertain the cause that moves all suddendly to start training a new skill
(it was there since always, but why you decided just now to start training it, even being the son of a famous
artisan of that crafting??)
For the river, well, probably some earth moving near the source moved the flow of an already existing river
from a distant and unexplored area...... So you never saw Kadaikos cause a rock drop blocked the road,
or you didn't found the way to the other levels so you don't know much about them.....
(At least the real world would be naturally subject to changes..... Isn't Yliakum supposed to be in that way?)