Anytime would include right this very second. Which since the seven years have not begun yet - and by how the pre-trib view defines itself - then pre-trib could be right.
However, if the 7 years begin and the rapture has not taken place, then the pre-trib view (pre 7 years) will have been proven wrong - but we are not at that stage yet.
Anytime rapture view takes into account all possibilities - only that it has to be before the Antichrist goes into the temple sits, claims to have achieved God hood (which triggers the beginning of the Day of the Lord).
Since the 7 years has started, and other than many churches stopped holding meetings almost a year ago in buildings, there has been no AC, and no rapture, many people are wrong on several fronts. The Second Coming is next to happen at any time, because no one can know or pinpoint when it happens. The rapture and completion of the church happens at the Second Coming, and not after Satan's 42 months. Armageddon is a planned event at the end of Satan's 42 months. It can be pinpointed to the day, and hour. Of course no one really wants to do that, because they have to claim it is an unknown. All of the time and the point of Satan being cast out heaven, and when he is allowed to set up kingdom, is based on the 7th Trumpet, and the confirmation of the Covenant for one week. A week of days, not a week of years. The week of years was Christ's baptism and the institution of the physical time of the Covenant on the Cross. The Atonement was a week of days. The week of years was the time Jesus Christ the Lamb was doing an earthly ministry. 3.5 years were already accomplished in the first century. The last 3.5 years will be shortened.
They are getting shorter each day, because they do not stop shorter, but they start at an unknown time and still end at the appropriate date of the 7th Trumpet. Satan's 42 months is a fixed time. If it happens at all. It only happens if the Covenant is confirmed and is not complete. If complete, then the week will not be cut in half and there will be no abomination of desolation.
The church is the key here. The church is the Steward and could reap the golden harvest herself. Now the falling away has to come first, because this means the harvest was not reaped. The church failed. Satan was allowed Stewardship. What ever the church does in the next few months or years will be it.
There is no time frame given for the Trumpets except 5 months. 5 months may be as short as this coming tribulation will be that people claim is post, mid, or pre. Satan's 42 months was never a planned part of the 70 weeks of Daniel. It was never about Satan. It was about the house of Jacob and a temple rebuilt. All accomplished before the baptism of Jesus. The Messiah was the topic and theme of the last week. The week of the Atonement was part of the first half. Satan did not get anything that week. Satan should not get anything the week of the 7th Trumpet.
Why the church is so set on giving it all to Satan is telling that the falling away has always been maintained by the mainstream. Always willing to co-exist with Satan to some degree. Lately always holding their breath waiting for Satan to just take over, so the church can retire.
The church knew about the harlot and the beast of Revelation 17 and 18 since the first century. The prophecy is self fulfilling in the fact that trying or not trying to avoid it will not work. Historically it has not worked. Those who refuse the power of government are just martyred, and those who think they can control the government, learn the hard way "power" cannot be controlled. God proved that by turning the most powerful and first king into a wild beast for an extended period of time to prove otherwise.
Satan and false prophets have been warned about, but the church does not have to give in to Satan to prove some point of prophecy.