None of today's 1911 platform pistols are being made to the original U.S. Government blueprints and material specifications.
And I doubt they could.
What Old Fuff has not mentioned that the original Colt M1911 was never made to a TDP. My source is "The Colt .45 Service Pistols" by Charles W. Clawson. Colt built the M1911 following a master model, in the model shop. All dimensions, critical or otherwise, were measured off this master model.
When WWI kicked off, only Colt could make M1911's. There were not enough of them, so now you know the origin of the M1917 45 ACP.
Colt was given a contract to develop drawings, and the due date was 6 Feb 1918. The drawings were so dimensionally incorrect and did not contain all important information that a functioning pistol could not be built from them. Instead of using the Colt drawings, Remington UMC received ten functioning Colt pistols, five of which were acceptable for taking measurements.
Remington created a set of "Salvage" drawings based on the average measurements taken from these Colt pistols. While you could not build a functioning pistol from these drawings, this TDP formed the basis for all subsequent production, including the WWII pistols.
From an gunsmith friend of mine, who was on the Armalite 50 design team, he has gotten pages of the Government M1911 TDP (I think it took a Freedom of Information act to get those), and he has found inconsistencies and tolerance problems with the existing TDP. So it appears that you cannot build a functioning M1911 from the obsolete M1911 TDP.
What I think is going on is manufacturers have created their own standards for dimensions in the M1911's they produce. This is the same situation for AR-15's. So at some level you can interchange parts without problems, but also at some level, you are going to find that some parts won't drop in.
Now, as for the New Colts being any good. Everything I read is that they function and go bang. Few gun stores carry them anymore because they are very expensive. A local high volume store claims that they are not as well built as other premium manufacturers, so they don't stock them. I don't doubt that, I have picked up new Colt M1911's and found they rattled more than the cheapest Springfield Armory M1911. At half the cost. I also have heard directly from people who have been to Colt that their machinery is obsolete. At least five years ago, when I heard this from a guy who was offered an important manufacturing position in the company, they did not have something as modern as a modern CNC machine center.
If Colt ever facilitizes, gets new equipment, their quality will get better. Subcontracting with quality manufacturers will help. If they will sub contract everything but the final fitting inhouse you will get a well built product. This is what they did on the Colt Blackpowder series. All the major components were made by Uberti, content laws allowed Colt to stamp “Made in the US” on the pistols. For Colt, we will see.