I posted the following in the SMIP thread:
Any time cards are restricted that fundamentally change the nature of how a deck archetype plays, new decks/deck designs/cards take their place.
And because these restrictions don't take place in a vacuum, it can be hard to evaluate the result of the restrictions alongside the plethora of new printings.
So the inevitable question is "what do I think the metagame will look like if _______ is restricted" and with the follow up of "will I like what comes next."
In way of example:
The chalice restriction saw major change tot he workshop pillar. Previous builds like Martello became sub-optimal. Over the winter of the restriction would see the rise of ravager shops as the dominant workshop archetype.
I occasionally ask players if they preferred playing against martello or ravager shops- the answers I've gotten are usually split.
Ravager shops gave rise to the restriction of Lodestone Golem, which in turn saw the redefinition of the workshop pillar into the thorn pillar and the evolution of the Eldrazi decks. Workshop has continued along the ravager path, with occasional terra nova and uba stax variants poking their heads up (often dependent on where Mentor decks sit, because smokestack isn't an awesome card against a token producer...)
To my imagination, restricting gush will eventually lead to the question of "did you prefer playing against gush mentor or _____ mentor" in much the same way that chalice elicits a question about martello vs. ravager.
But then again, I'm not sure we are in a place where anything needs to be restricted. Many of the people who said that the lodestone golem restriction really needed to happen for the health of vintage are some of the same voices saying that the vintage metagame is incredibly unhealthy now.
Which means that the restriction did not meet what they wanted. Note well I am not arguing that Lodestone staying would have created a more healthy metagame, nor am I suggesting that the restriction of Lodestone was a terrible event- I'm simply remarking that it did not satisfy. This could be for several reasons- again, restrictions don't stop cards from being printed and deck evolution from continuing.
Which then creates several interesting questions that wappla alluded to in an earlier post: what are players wanting out of vintage?
So, what do you want out of vintage? What makes your ideal Vintage?