If i have bougth the sony latest 3d tv will it work on ps4?
Will you be able to connect the PS4 to your 3D TV? Yes. Composite A/V connections have not gone anywhere for years, so don't' worry, HDMI is here to stay.
Will the PS4 have 3D support? I will say Yes. While 3D has not become what SONY was expecting 3D to become, I doubt they will not support the HDMI 1.4 specifications and take a step back to the HDMI 1.3 specs.
Sony has announced absolutely nothing about the PS4, and has not even acknowledged that there will be a PS4. Consequently, nothing specific is known about it. Still, assuming that the PS4 ships within the next 2-3 years; which is likely, then the 3D television standards will not change between now and then; and the next console will certainly support 3DTVs that are being sold today. 3DTVs are a hard enough sell without adding rapid obsolescence to the problem. There is no way that the industry is going to do that. Even if a new technology for glasses-free HDTV (which is the holy grail technology) is supported by the PS4 (which a TV purchased today will not support), the PS4 will certainly be backward-compatible with current 3DTV technology.