I wouldn’t be surprised if it is extended again, though perhaps with some additional conditions... For now, like most everyone else, all I can really do is speculate and observe what I have witnessed thus far...
A few days ago, when waiting to pay in a supermarket, I overheard two men discussing this possibility. One had mentioned in the conversation that it is probably “easier “ in some ways for Alberto Fernández to “renew” the quarantine every 15 days as opposed to declaring a much longer period (I.e. - 2 full months) right off the bat.
We shall see...