The entire Record Store Day 2018 lineup was split up between the April and November dates.
In April, three of her albums were released:
Taylor Swift (Self-Titled) - RSD 'First' Release on Crystal Clear & Turquoise Vinyl, limited to 5000 worldwide
Fearless (Platinum Edition) - RSD 'First' Release on Crystal Clear & Metallic Gold vinyl, limited to 5000 worldwide
1989 - RSD 'First' Release on Crystal Clear & Pink vinyl, limited to 5000 worldwide
According to the original release page, we can see that these were supposed to be limited to 2500 in the US, but as we know the releases were actually numbered to 3750.
In November, two more of her albums were released:
All of the US versions of these releases were pressed on by United Record Pressing in the United States and all EU versions were pressed by GZ Media in the Czech Republic. In the runouts, we can determine that all of the US releases were repressings from previously existing lacquers already made at United Record Pressing from previous releases. In the EU, only the 1989 is a repressing using its original Optimal Media GmbH lacquers–the plates from the Self-Titled, Fearless (Platinum Edition), Speak Now, and Red pressings done at Record Industry were discarded in favor of newly cut lacquers from GZ Media, where all five European releases were pressed at.
Most important to note were that these were the very first time that the first five albums in her discography were commercially available on colored vinyl, previously only available on black. 2017's Reputation on Orange Translucent vinyl is often erroneously grouped in with the 2018 RSD lineup, but it was released separately the year before the RSD event and was a FYE exclusive.
You may have noticed that the entire 2018 RSD lineup was designated RSD 'First' Releases. The biggest misconception about the rules as to whether or not vinyl can be repressed in the exact same way is because of the designations that RSD has:
1) RSD 'Exclusive' Releases: These titles are physically released only at indie record stores.
2) RSD 'First' Releases: These titles are found first at indie record stores but may be released to other retailers or webstores at some point in the future.
From these designations, we can conclude that her 2018 releases were, at least originally, given the option to be repressed and restocked. The question is: how would that have looked, and is that something that has ever even happened? Given the ever-increasing prices of these RSD releases (1989 goes for up to $2,000 these days), it would be an extremely efficient way for new fans to collect her original catalog.
Luckily, there is a perfect recent example: the Jonas Brother's The Family Business. On March 22, 2024, the compilation album was repressed on clear vinyl and released worldwide. However, this album has already come out on clear vinyl. It was released that past November 2023 for Record Store Day Black Friday! Originally limited to 3,500 copies, the album was packaged in a deluxe gatefold jacket with a clear outer slipcase that featured the album's title printed on the slipcase as opposed to the gatefold jacket.
Since the album was repressed identically compared to the RSD Black Friday edition, we can set a precedent for what RSD 'First' Releases can look like when they're repressed.