The in-between

If you build a nether portal out of crying obsidian on its side and you light it it will turn into an in-between portal when you go through the in between portal it will take you into a dimension with a standing up right portal of the same variant that will take you back and spit you out the top of the original portal you came through the in-between has some parts of the world as overworld with oceans of water followed by vast portions of void with end Islands stranded about as well as lava oceans with pieces of the nether it is a portal in between the nether the end and the overworld all types of mobs spawn in here this would prove to be an intense challenge it would have all the resources of all the dimensions but it would also be insanely dangerous to traverse so it may be highly rewarding but there is some danger involved not only that but it could also have some new mobs possibly one inspired by the final boss of the end DLC in Minecraft dungeons like an adult endermite endermites would also naturally spawn in this dimension as it is in between all of the dimensions and when someone uses an ender pearl there is a chance that they get pulled out of the inbetween and summoned into whatever dimension they use the ender pearl in as such whenever an ender might get summoned if someone is in the in between one of the endermites that they are around could possibly get teleported out of there. Thank you for your time and I hope you have a fantastic day!